Alright, let's work through 5201 times 2612 step by step
5201 × 2612 = 2612 × (5201)
+ 2612 × 1 what gives us 2612
+ 2612 × 00 producing 0
+ 2612 × 200 that is equal 522400
+ 2612 × 5000 that equals 13060000

= 13585012
