Alright, let's work through 72679056 times 64533549 step by step
72679056 × 64533549 = 64533549 × (72679056)
+ 64533549 × 6 producing 387201294
+ 64533549 × 50 that equals 3226677450
+ 64533549 × 000 that equals 0
+ 64533549 × 9000 that equals 580801941000
+ 64533549 × 70000 producing 4517348430000
+ 64533549 × 600000 resulting in 38720129400000
+ 64533549 × 2000000 that is equal 129067098000000
+ 64533549 × 70000000 which equals 4517348430000000

= 4690237421649744
