We're going to solve 5479 multiplied by 3990
5479 × 3990 = 3990 × (5479)
+ 3990 × 9 giving us 35910
+ 3990 × 70 which equals 279300
+ 3990 × 400 yielding 1596000
+ 3990 × 5000 what gives us 19950000

= 21861210
