We're going to solve 8390 multiplied by 5421
8390 × 5421 = 5421 × (8390)
+ 5421 × 0 what gives us 0
+ 5421 × 90 that is equal 487890
+ 5421 × 300 which equals 1626300
+ 5421 × 8000 which equals 43368000

= 45482190
