diff --git a/math/modular_division.cpp b/math/modular_division.cpp
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+++ b/math/modular_division.cpp
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+/**
+ * @file
+ * @brief Division of two numbers under modulo
+ *
+ * @details To calculate division of two numbers under modulo p
+ * Modulo operator is not distributive under division, therefore
+ * we first have to calculate the inverse of divisor using
+ * [Fermat's little theorem](https://en.wikipedia.org/wiki/Fermat%27s_little_theorem)
+ * Now, we can multiply the dividend with the inverse of divisor
+ * and modulo is distributive over multiplication operation.
+ * Let,
+ * We have 3 numbers a, b, p
+ * To compute (a/b)%p
+ * (a/b)%p ≡ (a*(inverse(b)))%p ≡ ((a%p)*inverse(b)%p)%p
+ * NOTE: For the existence of inverse of 'b', 'b' and 'p' must be coprime
+ * For simplicity we take p as prime
+ * Time Complexity: O(log(b))
+ *
+ * Example: ( 24 / 3 ) % 5 => 8 % 5 = 3 --- (i)
+            Now the inverse of 3 is 2
+            (24 * 2) % 5 = (24 % 5) * (2 % 5) = (4 * 2) % 5 = 3 --- (ii)
+            (i) and (ii) are equal hence the answer is correct.
+
+ *
+ * @see modular_inverse_fermat_little_theorem.cpp, modular_exponentiation.cpp
+ *
+ * @author [Shubham Yadav](https://github.com/shubhamamsa)
+ */
+
+#include <cassert>
+#include <iostream>
+
+/**
+ * @namespace math
+ */
+namespace math {
+  /**
+   * @brief This function calculates a raised to exponent b under modulo c using
+   * modular exponentiation.
+   * @param a integer base
+   * @param b unsigned integer exponent
+   * @param c integer modulo
+   * @return a raised to power b modulo c
+   */
+  int power(int a, int b, int c) {
+      int ans = 1;  /// Initialize the answer to be returned
+      a = a % c;         /// Update a if it is more than or equal to c
+      if (a == 0) {
+          return 0;  /// In case a is divisible by c;
+      }
+      while (b > 0) {
+          /// If b is odd, multiply a with answer
+          if (b & 1) {
+              ans = ((ans % c) * (a % c)) % c;
+          }
+          /// b must be even now
+          b = b >> 1;  /// b = b/2
+          a = ((a % c) * (a % c)) % c;
+      }
+      return ans;
+  }
+
+  /**
+   * @brief This function calculates modular division
+   * @param a integer dividend
+   * @param b integer divisor
+   * @param p integer modulo
+   * @return a/b modulo c
+   */
+  int mod_division(int a, int b, int p)	{
+      int inverse = power(b, p-2, p)%p;  /// Calculate the inverse of b
+      int result = ((a%p)*(inverse%p))%p;   /// Calculate the final result
+      return result;
+  }
+}
+
+/**
+ * Function for testing power function.
+ * test cases and assert statement.
+ * @returns `void`
+ */
+static void test() {
+    int test_case_1 = math::mod_division(8, 2, 2);
+    assert(test_case_1 == 0);
+    std::cout << "Test 1 Passed!" << std::endl;
+    int test_case_2 = math::mod_division(15, 3, 7);
+    assert(test_case_2 == 5);
+    std::cout << "Test 2 Passed!" << std::endl;
+    int test_case_3 = math::mod_division(10, 5, 2);
+    assert(test_case_3 == 0);
+    std::cout << "Test 3 Passed!" << std::endl;
+    int test_case_4 = math::mod_division(81, 3, 5);
+    assert(test_case_4 == 2);
+    std::cout << "Test 4 Passed!" << std::endl;
+    int test_case_5 = math::mod_division(12848, 73, 29);
+    assert(test_case_5 == 2);
+    std::cout << "Test 5 Passed!" << std::endl;
+}
+
+/**
+ * @brief Main function
+ * @param argc commandline argument count (ignored)
+ * @param argv commandline array of arguments (ignored)
+ * @returns 0 on exit
+ */
+int main(int argc, char *argv[]) {
+    test(); // execute the tests
+    return 0;
+}