We're going to solve 73728921 multiplied by 72831952
73728921 × 72831952 = 72831952 × (73728921)
+ 72831952 × 1 what gives us 72831952
+ 72831952 × 20 which equals 1456639040
+ 72831952 × 900 what gives us 65548756800
+ 72831952 × 8000 giving us 582655616000
+ 72831952 × 20000 resulting in 1456639040000
+ 72831952 × 700000 yielding 50982366400000
+ 72831952 × 3000000 producing 218495856000000
+ 72831952 × 70000000 what gives us 5098236640000000

= 5369821235283792
