We're going to solve 8442 multiplied by 9787
8442 × 9787 = 9787 × (8442)
+ 9787 × 2 which equals 19574
+ 9787 × 40 giving us 391480
+ 9787 × 400 yielding 3914800
+ 9787 × 8000 which equals 78296000

= 82621854
