102400000
You seem to be unaware of the fact that you could have obtained the answer much more easily and quickly by using the calculator that comes as part of your computer. 655360000000/64000 = 102400000.
102,400,000
64000 divided by 110 equals 581 with a remainder of 90
64000 divided by 110 equals 581 with a remainder of 90
22.4956
80
1600
2370.3704
20% of 64000= 20% * 64000= 0.2 * 64000= 12,800
1600000000
64000 + 12% = 64000*1.12 = 71680
64000
64000
64000 meters is 64km