we want to get rid of that decimal....so we move it 2 spaces to the right....by doing that, we also have to move the decimal under the division sign by 2 spaces to the right....turning ur problem into :
16.1 R 225 <== ur answer ______ 775 |12500.0 775 ------- subtract 4750 4650 ---------subtract 1000 775 -----------subtract 225
