We're going to solve 4399 multiplied by 1421
4399 × 1421 = 1421 × (4399)
+ 1421 × 9 what gives us 12789
+ 1421 × 90 producing 127890
+ 1421 × 300 giving us 426300
+ 1421 × 4000 that results in 5684000

= 6250979
