It is so very quick and simple to obtain the answer. All that is required is to use the calculator - IF you need one - which is available on your computer. But since you are clearly unable to use the calculator, the answer is 2.
408
The numbers that are divisible by 408 are infinite. The first four are: 408, 816, 1224, 1632 . . .
204, 408, 612, 816, 1020 . . .
0.0816=8.16%=8.16/100=816/10000816/10000=408/5000=204/2500=102/1250=51/625To check:51 divided by 625=0.0816
0.0074
12
24
68
4
0.0049
17
102