Alright, let's work through 2520 times 8534 step by step
2520 × 8534 = 8534 × (2520)
+ 8534 × 0 giving us 0
+ 8534 × 20 yielding 170680
+ 8534 × 500 that equals 4267000
+ 8534 × 2000 giving us 17068000

= 21505680
