We're going to solve 6401 multiplied by 3399
6401 × 3399 = 3399 × (6401)
+ 3399 × 1 yielding 3399
+ 3399 × 00 giving us 0
+ 3399 × 400 that is equal 1359600
+ 3399 × 6000 giving us 20394000

= 21756999
