Alright, let's work through 84755924 times 18775821 step by step
84755924 × 18775821 = 18775821 × (84755924)
+ 18775821 × 4 which equals 75103284
+ 18775821 × 20 giving us 375516420
+ 18775821 × 900 resulting in 16898238900
+ 18775821 × 5000 which equals 93879105000
+ 18775821 × 50000 yielding 938791050000
+ 18775821 × 700000 giving us 13143074700000
+ 18775821 × 4000000 that results in 75103284000000
+ 18775821 × 80000000 that results in 1502065680000000

= 1591362057713604
