Alright, let's work through 51729784 times 89893622 step by step
51729784 × 89893622 = 89893622 × (51729784)
+ 89893622 × 4 resulting in 359574488
+ 89893622 × 80 which equals 7191489760
+ 89893622 × 700 giving us 62925535400
+ 89893622 × 9000 resulting in 809042598000
+ 89893622 × 20000 which equals 1797872440000
+ 89893622 × 700000 yielding 62925535400000
+ 89893622 × 1000000 giving us 89893622000000
+ 89893622 × 50000000 resulting in 4494681100000000

= 4650177649037648
