Alright, let's work through 72505808 times 67896497 step by step
72505808 × 67896497 = 67896497 × (72505808)
+ 67896497 × 8 producing 543171976
+ 67896497 × 00 that equals 0
+ 67896497 × 800 giving us 54317197600
+ 67896497 × 5000 resulting in 339482485000
+ 67896497 × 00000 that equals 0
+ 67896497 × 500000 that results in 33948248500000
+ 67896497 × 2000000 yielding 135792994000000
+ 67896497 × 70000000 that is equal 4752754790000000

= 4922890375354576
