Alright, let's work through 5140 times 2585 step by step
5140 × 2585 = 2585 × (5140)
+ 2585 × 0 resulting in 0
+ 2585 × 40 what gives us 103400
+ 2585 × 100 resulting in 258500
+ 2585 × 5000 that is equal 12925000

= 13286900
