Alright, let's work through 3811 times 71 step by step
3811 × 71 = 71 × (3811)
+ 71 × 1 what gives us 71
+ 71 × 10 that is equal 710
+ 71 × 800 producing 56800
+ 71 × 3000 that is equal 213000

= 270581
