We're going to solve 3889 multiplied by 1784
3889 × 1784 = 1784 × (3889)
+ 1784 × 9 yielding 16056
+ 1784 × 80 what gives us 142720
+ 1784 × 800 yielding 1427200
+ 1784 × 3000 producing 5352000

= 6937976
