Alright, let's work through 5581 times 858 step by step
5581 × 858 = 858 × (5581)
+ 858 × 1 what gives us 858
+ 858 × 80 producing 68640
+ 858 × 500 that is equal 429000
+ 858 × 5000 yielding 4290000

= 4788498
