How do we find remainder of two numbers by using addition subtraction multiplication and division?

Answer 1

The remainder of two positive integers can be calculated by first dividing one number (the dividend) by the other (the divisor) using integer division (ignoring any fractional component). Multiply this quotient by the divisor, then subtract the product from the dividend. The result is the remainder.

Alternatively, while the dividend remains greater than the divisor, subtract the divisor from the dividend and repeat until the dividend is smaller than the divisor. The dividend is then the remainder.

Answer 2

You find the remainder of an integer division by using the modulo operator. To do it without using modulo, perform the division and take the integer. Multiply the integer by the divisor and subtract the product from the dividend. The result is the remainder.