We're going to solve 2421 multiplied by 7777
2421 × 7777 = 7777 × (2421)
+ 7777 × 1 that results in 7777
+ 7777 × 20 what gives us 155540
+ 7777 × 400 what gives us 3110800
+ 7777 × 2000 resulting in 15554000

= 18828117
