Alright, let's work through 2521 times 4791 step by step
2521 × 4791 = 4791 × (2521)
+ 4791 × 1 giving us 4791
+ 4791 × 20 that equals 95820
+ 4791 × 500 giving us 2395500
+ 4791 × 2000 yielding 9582000

= 12078111
