Alright, let's work through 84422745 times 77735849 step by step
84422745 × 77735849 = 77735849 × (84422745)
+ 77735849 × 5 resulting in 388679245
+ 77735849 × 40 resulting in 3109433960
+ 77735849 × 700 yielding 54415094300
+ 77735849 × 2000 that equals 155471698000
+ 77735849 × 20000 resulting in 1554716980000
+ 77735849 × 400000 giving us 31094339600000
+ 77735849 × 4000000 which equals 310943396000000
+ 77735849 × 80000000 what gives us 6218867920000000

= 6562673757485505
