Alright, let's work through 2509 times 6348 step by step
2509 × 6348 = 6348 × (2509)
+ 6348 × 9 that equals 57132
+ 6348 × 00 yielding 0
+ 6348 × 500 that results in 3174000
+ 6348 × 2000 resulting in 12696000

= 15927132
