Alright, let's work through 2581 times 6090 step by step
2581 × 6090 = 6090 × (2581)
+ 6090 × 1 resulting in 6090
+ 6090 × 80 giving us 487200
+ 6090 × 500 giving us 3045000
+ 6090 × 2000 that results in 12180000

= 15718290
