Alright, let's work through 2919 times 6343 step by step
2919 × 6343 = 6343 × (2919)
+ 6343 × 9 producing 57087
+ 6343 × 10 giving us 63430
+ 6343 × 900 which equals 5708700
+ 6343 × 2000 that is equal 12686000

= 18515217
