In the calculation 28 /7 = 4 the result is 4 and the divisor is 7. From the result i want to calculate back into the divisor. In other words, all I have to do in this case is is 4 + 3 and i get back to the divisor 7.
But that does not work when i do 28 / 2 = 14. In this case I have to do 14 - 12 = 2 to get back to the divisor.
Is there a formula or equation that I can apply that calculates the result back to the divisor every time?