Alright, let's work through 4726 times 257 step by step
4726 × 257 = 257 × (4726)
+ 257 × 6 that is equal 1542
+ 257 × 20 resulting in 5140
+ 257 × 700 producing 179900
+ 257 × 4000 resulting in 1028000

= 1214582
