We're going to solve 9129 multiplied by 2721
9129 × 2721 = 2721 × (9129)
+ 2721 × 9 that equals 24489
+ 2721 × 20 that equals 54420
+ 2721 × 100 that equals 272100
+ 2721 × 9000 giving us 24489000

= 24840009
