43 can go into 85 exactly 1 time with a remainder of 42.
85 can go into 255 3 times.
The answer is 3.4
85
85 times
765 ÷ 9 = 85
17
.
9 goes into 85 9 times
272 ÷ 85 = 3 with remainder 17
85 goes into 42.5 .5 times
85 ÷ 14 = 6 with remainder 1