Alright, let's work through 8680 times 416 step by step
8680 × 416 = 416 × (8680)
+ 416 × 0 that is equal 0
+ 416 × 80 that equals 33280
+ 416 × 600 that is equal 249600
+ 416 × 8000 yielding 3328000

= 3610880
