the answer is 563 remainder 4 you can do it by doing long division to check you can multiply 563 times 8 you get that answer than add on the remainder 4
5/2 divided by 8/1 = 5/16
8
659.25
15.6
0.06153846
21
0.0064308681672025723472668810289389
2.55
18.3881737745
3143/8 = 392.875
4
11.21