We're going to solve 4027 multiplied by 7728
4027 × 7728 = 7728 × (4027)
+ 7728 × 7 that results in 54096
+ 7728 × 20 producing 154560
+ 7728 × 000 producing 0
+ 7728 × 4000 that results in 30912000

= 31120656
