We're going to solve 6391 multiplied by 3128
6391 × 3128 = 3128 × (6391)
+ 3128 × 1 that results in 3128
+ 3128 × 90 that equals 281520
+ 3128 × 300 resulting in 938400
+ 3128 × 6000 producing 18768000

= 19991048
