Alright, let's work through 40208896 times 72485636 step by step
40208896 × 72485636 = 72485636 × (40208896)
+ 72485636 × 6 that results in 434913816
+ 72485636 × 90 giving us 6523707240
+ 72485636 × 800 yielding 57988508800
+ 72485636 × 8000 producing 579885088000
+ 72485636 × 00000 yielding 0
+ 72485636 × 200000 that equals 14497127200000
+ 72485636 × 0000000 resulting in 0
+ 72485636 × 40000000 giving us 2899425440000000

= 2914567399417856
