Alright, let's work through 1860 times 8355 step by step
1860 × 8355 = 8355 × (1860)
+ 8355 × 0 which equals 0
+ 8355 × 60 which equals 501300
+ 8355 × 800 resulting in 6684000
+ 8355 × 1000 which equals 8355000

= 15540300
