program using addition only

I am trying to make a calculator program using addition only...I have made the code for multiplication, but am having trouble with - and division.

I created division with just subtraction but can't figure it out with addition.

heres my one example:

insert
Code:

`int divide, divis, quotient;`

printf("Enter Number 1:");

scanf("%d", ÷);

printf("Enter Number 2:");

scanf("%d", &divis);

quotient=0;

while(divide > 0){

divide = divide - divis;

quotient++;

}

printf("%d\n, quotient);