Alright, let's work through 6457 times 632 step by step
6457 × 632 = 632 × (6457)
+ 632 × 7 that is equal 4424
+ 632 × 50 yielding 31600
+ 632 × 400 giving us 252800
+ 632 × 6000 resulting in 3792000

= 4080824
