Alright, let's work through 5409 times 2581 step by step
5409 × 2581 = 2581 × (5409)
+ 2581 × 9 which equals 23229
+ 2581 × 00 giving us 0
+ 2581 × 400 that is equal 1032400
+ 2581 × 5000 producing 12905000

= 13960629
