Alright, let's work through 89224021 times 84538154 step by step
89224021 × 84538154 = 84538154 × (89224021)
+ 84538154 × 1 giving us 84538154
+ 84538154 × 20 that equals 1690763080
+ 84538154 × 000 what gives us 0
+ 84538154 × 4000 that is equal 338152616000
+ 84538154 × 20000 that equals 1690763080000
+ 84538154 × 200000 which equals 16907630800000
+ 84538154 × 9000000 which equals 760843386000000
+ 84538154 × 80000000 giving us 6763052320000000

= 7542834027797234
