Alright, let's work through 2510 times 5264 step by step
2510 × 5264 = 5264 × (2510)
+ 5264 × 0 that equals 0
+ 5264 × 10 yielding 52640
+ 5264 × 500 yielding 2632000
+ 5264 × 2000 yielding 10528000

= 13212640
