Alright, let's work through 8430 times 5684 step by step
8430 × 5684 = 5684 × (8430)
+ 5684 × 0 resulting in 0
+ 5684 × 30 giving us 170520
+ 5684 × 400 that equals 2273600
+ 5684 × 8000 producing 45472000

= 47916120
