Alright, let's work through 1657 times 4056 step by step
1657 × 4056 = 4056 × (1657)
+ 4056 × 7 that is equal 28392
+ 4056 × 50 which equals 202800
+ 4056 × 600 that is equal 2433600
+ 4056 × 1000 that equals 4056000

= 6720792
