How to Divide with Decimals 1 If the number you're dividing by has a decimal, move the decimal point all the way to the right counting the number of places you've moved it to.... 2 Insert a decimal point in the quotient (answer) space, exactly above the decimal point in the number under the division bar. 3 Divide until the remainder is zero, or until you have enough decimal places in your answer. You can also stop if the...