We're going to solve 3909 multiplied by 2451
3909 × 2451 = 2451 × (3909)
+ 2451 × 9 resulting in 22059
+ 2451 × 00 producing 0
+ 2451 × 900 giving us 2205900
+ 2451 × 3000 that results in 7353000

= 9580959
