Alright, let's work through 89974670 times 1989861 step by step
89974670 × 1989861 = 1989861 × (89974670)
+ 1989861 × 0 that equals 0
+ 1989861 × 70 yielding 139290270
+ 1989861 × 600 resulting in 1193916600
+ 1989861 × 4000 yielding 7959444000
+ 1989861 × 70000 which equals 139290270000
+ 1989861 × 900000 resulting in 1790874900000
+ 1989861 × 9000000 what gives us 17908749000000
+ 1989861 × 80000000 that results in 159188880000000

= 179037086820870
