We're going to solve 3861 multiplied by 2500
3861 × 2500 = 2500 × (3861)
+ 2500 × 1 producing 2500
+ 2500 × 60 producing 150000
+ 2500 × 800 what gives us 2000000
+ 2500 × 3000 producing 7500000

= 9652500
