Alright, let's work through 84550811 times 85793021 step by step
84550811 × 85793021 = 85793021 × (84550811)
+ 85793021 × 1 giving us 85793021
+ 85793021 × 10 which equals 857930210
+ 85793021 × 800 that results in 68634416800
+ 85793021 × 0000 giving us 0
+ 85793021 × 50000 what gives us 4289651050000
+ 85793021 × 500000 which equals 42896510500000
+ 85793021 × 4000000 that results in 343172084000000
+ 85793021 × 80000000 what gives us 6863441680000000

= 7253869503690031
