Alright, let's work through 2379 times 5543 step by step
2379 × 5543 = 5543 × (2379)
+ 5543 × 9 resulting in 49887
+ 5543 × 70 yielding 388010
+ 5543 × 300 producing 1662900
+ 5543 × 2000 producing 11086000

= 13186797
