Can someone please help me?

The depreciation per unit for a company

1. what are the missing reasons in the proof 2. it's in the second picture and 3

Axel follows these steps to divide 40 by 9: start with 40. 1. divide by 9 and write down the remainder. 2. write a zero after the remainder. 3. repeat steps 1 and 2 until you have a remainder of zero. examine his work, and then complete the statements below.