We're going to solve 6443 multiplied by 2821
6443 × 2821 = 2821 × (6443)
+ 2821 × 3 that equals 8463
+ 2821 × 40 that is equal 112840
+ 2821 × 400 that results in 1128400
+ 2821 × 6000 that equals 16926000

= 18175703
