9-9-9-9-9-9-9-9-9-8-8-8-8-8-7-7-7-7 7-7-7-7-7-6--35-3-5-34-5-4-5-34-353 66386647832648638764872384687384326 478364687326467823648723648723

I think that this would be a great question for a calculator. All you need to do is plug the numbers in, and the calculator will solve the problem for you {although that last number might be a bit long for the calculator:) }

what is the original number? you forgot to add it.