Alright, let's work through 2431 times 3421 step by step
2431 × 3421 = 3421 × (2431)
+ 3421 × 1 that equals 3421
+ 3421 × 30 which equals 102630
+ 3421 × 400 giving us 1368400
+ 3421 × 2000 that is equal 6842000

= 8316451
