Eight times exactly - and the word is 'does' not 'dose' !
It does (not dose!) go 8 times, with a remainder.
20 times
11 times.
63 times.
Nine times.
1600
20 4s go into 80.
80
Two times.
43 times with a remainder of 5... and it's 'does' - not 'dose' !
35 times equally no numbers left over.
37 with remainder 40.
29 with remainder 43.
1 with remainder 16.
640 ÷ 8 = 80.
About 53.4 times or 53 with remainder 11.