Alright, let's work through 5215 times 2511 step by step
5215 × 2511 = 2511 × (5215)
+ 2511 × 5 what gives us 12555
+ 2511 × 10 yielding 25110
+ 2511 × 200 giving us 502200
+ 2511 × 5000 what gives us 12555000

= 13094865
