Similar to multiplication division can be seen multiple subtractions. For example if we have to divide 9 by 4 we can subtract 4 ,2, times until is is left with an number less than 4, i ,e then 2 will be the quotient and 1 will be the remainder. Actually this concept is used in microprocessor for division. Followings example shows a simple binary division.
Example: Divide 1101102 by 1012
Solution : divisor 10) 110110 ( 1010
Important : multiplication is multiple additions and division is multiple sub tractions. And as we know that subtraction is done by addition using 2 complement method. So the division can be done by addition. Hence a single digital circuit of an adder can perform all these basic operations of additions subtraction multiplications and division.