Divide.

20c² ÷ 15c

The division is as follows:

Here when 15c is multiplied by 1c we get 15c² as the result.

In division the sign of the product [divisor × quotient] is always inverted to get the final result.

So the sign of product should always be opposite to that of the dividend.

So 20c² when divided by 15c, the quotient is 1c and remainder is 5c².