To divide 86 by 9 using repeated subtraction you subtract nine from 86 repeatedly until you cannot subtract nine anymore without going below zero
86-9=77
77-9=68
68-9=59
59-9=50
50-9=41
41-9=32
32-9=23
23-9=14
14-9=5
You cannot subtract nine from five without going below zero therefore 86÷9 = 9, with a remaining a five