Alright, let's work through 8330 times 1861 step by step
8330 × 1861 = 1861 × (8330)
+ 1861 × 0 resulting in 0
+ 1861 × 30 what gives us 55830
+ 1861 × 300 what gives us 558300
+ 1861 × 8000 giving us 14888000

= 15502130
