We're going to solve 5421 multiplied by 7971
5421 × 7971 = 7971 × (5421)
+ 7971 × 1 what gives us 7971
+ 7971 × 20 that is equal 159420
+ 7971 × 400 that is equal 3188400
+ 7971 × 5000 yielding 39855000

= 43210791
