We're going to solve 3891 multiplied by 7750
3891 × 7750 = 7750 × (3891)
+ 7750 × 1 producing 7750
+ 7750 × 90 producing 697500
+ 7750 × 800 yielding 6200000
+ 7750 × 3000 yielding 23250000

= 30155250
