Alright, let's work through 2580 times 5615 step by step
2580 × 5615 = 5615 × (2580)
+ 5615 × 0 resulting in 0
+ 5615 × 80 yielding 449200
+ 5615 × 500 that is equal 2807500
+ 5615 × 2000 which equals 11230000

= 14486700
