42 with remainder 1.
85
85 ÷ 2 = 42 with remainder 1
189 ÷ 85 = 2 with remainder 19 or 2.22 times.
2 with remainder 73.
2 with remainder 45.
171 ÷ 2 = 85.5 or 85 times with a remainder of 1.
4 with remainder 9.
2.3 times or 2 with remainder 11.
2 with a remainder of 15 or 2 3/7 .
42 1/2 To find the answer, divide 85 by 2 (I'm guessing if you looked at the programs on your computer, you might find it has a calculator. )
2 x 2 + 85 = 89
It is: (85*2)+(78*8) = 794