Alright, let's work through 89088270 times 21142193 step by step
89088270 × 21142193 = 21142193 × (89088270)
+ 21142193 × 0 giving us 0
+ 21142193 × 70 that results in 1479953510
+ 21142193 × 200 resulting in 4228438600
+ 21142193 × 8000 resulting in 169137544000
+ 21142193 × 80000 producing 1691375440000
+ 21142193 × 000000 yielding 0
+ 21142193 × 9000000 what gives us 190279737000000
+ 21142193 × 80000000 resulting in 1691375440000000

= 1883521398376110
