Alright, let's work through 3885 times 7811 step by step
3885 × 7811 = 7811 × (3885)
+ 7811 × 5 yielding 39055
+ 7811 × 80 which equals 624880
+ 7811 × 800 yielding 6248800
+ 7811 × 3000 giving us 23433000

= 30345735
