Alright, let's work through 2580 times 4862 step by step
2580 × 4862 = 4862 × (2580)
+ 4862 × 0 producing 0
+ 4862 × 80 that equals 388960
+ 4862 × 500 yielding 2431000
+ 4862 × 2000 that equals 9724000

= 12543960
