We're going to solve 4001 multiplied by 1122
4001 × 1122 = 1122 × (4001)
+ 1122 × 1 which equals 1122
+ 1122 × 00 resulting in 0
+ 1122 × 000 that is equal 0
+ 1122 × 4000 that equals 4488000

= 4489122
