Alright, let's work through 72750416 times 57665438 step by step
72750416 × 57665438 = 57665438 × (72750416)
+ 57665438 × 6 what gives us 345992628
+ 57665438 × 10 which equals 576654380
+ 57665438 × 400 yielding 23066175200
+ 57665438 × 0000 producing 0
+ 57665438 × 50000 that is equal 2883271900000
+ 57665438 × 700000 yielding 40365806600000
+ 57665438 × 2000000 giving us 115330876000000
+ 57665438 × 70000000 giving us 4036580660000000

= 4195184603322208
