Alright, let's work through 6431 times 9401 step by step
6431 × 9401 = 9401 × (6431)
+ 9401 × 1 which equals 9401
+ 9401 × 30 that is equal 282030
+ 9401 × 400 that equals 3760400
+ 9401 × 6000 that equals 56406000

= 60457831
