Alright, let's work through 6431 times 6626 step by step
6431 × 6626 = 6626 × (6431)
+ 6626 × 1 what gives us 6626
+ 6626 × 30 producing 198780
+ 6626 × 400 giving us 2650400
+ 6626 × 6000 what gives us 39756000

= 42611806
