Alright, let's work through 69728866 times 72659299 step by step
69728866 × 72659299 = 72659299 × (69728866)
+ 72659299 × 6 what gives us 435955794
+ 72659299 × 60 that equals 4359557940
+ 72659299 × 800 that equals 58127439200
+ 72659299 × 8000 which equals 581274392000
+ 72659299 × 20000 producing 1453185980000
+ 72659299 × 700000 that results in 50861509300000
+ 72659299 × 9000000 producing 653933691000000
+ 72659299 × 60000000 producing 4359557940000000

= 5066450523624934
