Alright, let's work through 5631 times 71 step by step
5631 × 71 = 71 × (5631)
+ 71 × 1 giving us 71
+ 71 × 30 giving us 2130
+ 71 × 600 that results in 42600
+ 71 × 5000 what gives us 355000

= 399801
