Alright, let's work through 72502801 times 83752122 step by step
72502801 × 83752122 = 83752122 × (72502801)
+ 83752122 × 1 producing 83752122
+ 83752122 × 00 that equals 0
+ 83752122 × 800 that equals 67001697600
+ 83752122 × 2000 what gives us 167504244000
+ 83752122 × 00000 what gives us 0
+ 83752122 × 500000 resulting in 41876061000000
+ 83752122 × 2000000 resulting in 167504244000000
+ 83752122 × 70000000 giving us 5862648540000000

= 6072263434693722
