We're going to solve 2421 multiplied by 8611
2421 × 8611 = 8611 × (2421)
+ 8611 × 1 resulting in 8611
+ 8611 × 20 resulting in 172220
+ 8611 × 400 that results in 3444400
+ 8611 × 2000 producing 17222000

= 20847231
