Alright, let's work through 9840 times 3819 step by step
9840 × 3819 = 3819 × (9840)
+ 3819 × 0 which equals 0
+ 3819 × 40 which equals 152760
+ 3819 × 800 resulting in 3055200
+ 3819 × 9000 yielding 34371000

= 37578960
