We're going to solve 6420 multiplied by 9643
6420 × 9643 = 9643 × (6420)
+ 9643 × 0 that is equal 0
+ 9643 × 20 that is equal 192860
+ 9643 × 400 that equals 3857200
+ 9643 × 6000 yielding 57858000

= 61908060
