We're going to solve 8431 multiplied by 2409
8431 × 2409 = 2409 × (8431)
+ 2409 × 1 what gives us 2409
+ 2409 × 30 resulting in 72270
+ 2409 × 400 what gives us 963600
+ 2409 × 8000 what gives us 19272000

= 20310279
