We're going to solve 4440 multiplied by 3989
4440 × 3989 = 3989 × (4440)
+ 3989 × 0 that is equal 0
+ 3989 × 40 resulting in 159560
+ 3989 × 400 giving us 1595600
+ 3989 × 4000 yielding 15956000

= 17711160
