Alright, let's work through 5831 times 4021 step by step
5831 × 4021 = 4021 × (5831)
+ 4021 × 1 that equals 4021
+ 4021 × 30 resulting in 120630
+ 4021 × 800 that results in 3216800
+ 4021 × 5000 which equals 20105000

= 23446451
