We're going to solve 3840 multiplied by 1591
3840 × 1591 = 1591 × (3840)
+ 1591 × 0 that results in 0
+ 1591 × 40 resulting in 63640
+ 1591 × 800 what gives us 1272800
+ 1591 × 3000 producing 4773000

= 6109440
