Alright, let's work through 7830 times 3874 step by step
7830 × 3874 = 3874 × (7830)
+ 3874 × 0 yielding 0
+ 3874 × 30 that equals 116220
+ 3874 × 800 producing 3099200
+ 3874 × 7000 resulting in 27118000

= 30333420
