Alright, let's work through 5457 times 2515 step by step
5457 × 2515 = 2515 × (5457)
+ 2515 × 7 giving us 17605
+ 2515 × 50 giving us 125750
+ 2515 × 400 that equals 1006000
+ 2515 × 5000 yielding 12575000

= 13724355
