We're going to solve 4541 multiplied by 4020
4541 × 4020 = 4020 × (4541)
+ 4020 × 1 yielding 4020
+ 4020 × 40 what gives us 160800
+ 4020 × 500 giving us 2010000
+ 4020 × 4000 resulting in 16080000

= 18254820
