Alright, let's work through 2509 times 4373 step by step
2509 × 4373 = 4373 × (2509)
+ 4373 × 9 giving us 39357
+ 4373 × 00 that results in 0
+ 4373 × 500 yielding 2186500
+ 4373 × 2000 giving us 8746000

= 10971857
