Alright, let's work through 5721 times 2507 step by step
5721 × 2507 = 2507 × (5721)
+ 2507 × 1 that is equal 2507
+ 2507 × 20 giving us 50140
+ 2507 × 700 that equals 1754900
+ 2507 × 5000 that is equal 12535000

= 14342547
