We're going to solve 7777 multiplied by 2603
7777 × 2603 = 2603 × (7777)
+ 2603 × 7 giving us 18221
+ 2603 × 70 giving us 182210
+ 2603 × 700 yielding 1822100
+ 2603 × 7000 producing 18221000

= 20243531
