We're going to solve 8187 multiplied by 2487
8187 × 2487 = 2487 × (8187)
+ 2487 × 7 giving us 17409
+ 2487 × 80 yielding 198960
+ 2487 × 100 that equals 248700
+ 2487 × 8000 producing 19896000

= 20361069
