We're going to solve 6405 multiplied by 1321
6405 × 1321 = 1321 × (6405)
+ 1321 × 5 that is equal 6605
+ 1321 × 00 producing 0
+ 1321 × 400 giving us 528400
+ 1321 × 6000 what gives us 7926000

= 8461005
