Alright, let's work through 3831 times 9860 step by step
3831 × 9860 = 9860 × (3831)
+ 9860 × 1 that results in 9860
+ 9860 × 30 resulting in 295800
+ 9860 × 800 that results in 7888000
+ 9860 × 3000 that is equal 29580000

= 37773660
