Alright, let's work through 5687 times 8439 step by step
5687 × 8439 = 8439 × (5687)
+ 8439 × 7 that is equal 59073
+ 8439 × 80 resulting in 675120
+ 8439 × 600 producing 5063400
+ 8439 × 5000 which equals 42195000

= 47992593
