There are infinitely many answers. Two possibilities are
1*64 and 10*6.4
10
8 8*8=64
8 x 64 = 512
35 times 64 times 56 times 54 is equal to 6,773,760.
2.297397
16
64 = 1024
8x8 Equals To 64
8 x 8 = 64
16 x 4 = 64
8 multiplied by 8 is 64.
The ratio of 16 to 64 is 1 to 4, because 64 is 4 times bigger than 16, and 4 is 4 times bigger than 1.