Alright, let's work through 84214993 times 19210511 step by step
84214993 × 19210511 = 19210511 × (84214993)
+ 19210511 × 3 which equals 57631533
+ 19210511 × 90 what gives us 1728945990
+ 19210511 × 900 that is equal 17289459900
+ 19210511 × 4000 that equals 76842044000
+ 19210511 × 10000 giving us 192105110000
+ 19210511 × 200000 giving us 3842102200000
+ 19210511 × 4000000 that equals 76842044000000
+ 19210511 × 80000000 that equals 1536840880000000

= 1617813049391423
