Alright, let's work through 6457 times 7574 step by step
6457 × 7574 = 7574 × (6457)
+ 7574 × 7 which equals 53018
+ 7574 × 50 what gives us 378700
+ 7574 × 400 that is equal 3029600
+ 7574 × 6000 that equals 45444000

= 48905318
