Alright, let's work through 3822 times 2580 step by step
3822 × 2580 = 2580 × (3822)
+ 2580 × 2 which equals 5160
+ 2580 × 20 yielding 51600
+ 2580 × 800 that equals 2064000
+ 2580 × 3000 producing 7740000

= 9860760
