Alright, let's work through 4957 times 2564 step by step
4957 × 2564 = 2564 × (4957)
+ 2564 × 7 yielding 17948
+ 2564 × 50 yielding 128200
+ 2564 × 900 yielding 2307600
+ 2564 × 4000 yielding 10256000

= 12709748
