Alright, let's work through 72381992 times 8805972 step by step
72381992 × 8805972 = 8805972 × (72381992)
+ 8805972 × 2 that equals 17611944
+ 8805972 × 90 that results in 792537480
+ 8805972 × 900 that results in 7925374800
+ 8805972 × 1000 resulting in 8805972000
+ 8805972 × 80000 giving us 704477760000
+ 8805972 × 300000 that is equal 2641791600000
+ 8805972 × 2000000 that equals 17611944000000
+ 8805972 × 70000000 giving us 616418040000000

= 637393794856224
