We're going to solve 4423 multiplied by 5007
4423 × 5007 = 5007 × (4423)
+ 5007 × 3 yielding 15021
+ 5007 × 20 yielding 100140
+ 5007 × 400 what gives us 2002800
+ 5007 × 4000 producing 20028000

= 22145961
