Alright, let's work through 3994 times 824 step by step
3994 × 824 = 824 × (3994)
+ 824 × 4 yielding 3296
+ 824 × 90 producing 74160
+ 824 × 900 producing 741600
+ 824 × 3000 that equals 2472000

= 3291056
