Alright, let's work through 2457 times 5291 step by step
2457 × 5291 = 5291 × (2457)
+ 5291 × 7 which equals 37037
+ 5291 × 50 that equals 264550
+ 5291 × 400 that results in 2116400
+ 5291 × 2000 resulting in 10582000

= 12999987
