215771 ÷ 81 
Our goal is to divide 215771 by 81.

Going ahead to step 1:
81 goes into 2 0 times with a remainder of 2.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Subtracting 0 from 2 leaves us with 2.
Append the next digit (1) from the dividend to 2 and continue with: 21 / 81

Going ahead to step 2:
When dividing 21 by 81, we get 0 with a remainder of 21.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Subtracting 0 from 21 leaves us with 21.
Append the next digit (5) from the dividend to 21 and continue with: 215 / 81

Going ahead to step 3:
When dividing 215 by 81, we get 2 with a remainder of 53.
The next digit of our result is 2. 
Result so far: 2.0
If we subtract 162 from 215, we get 53.
Bring next digit (7) of the dividend behind the 53 and repeat the process: 537 / 81

Step 4:
537 divided by 81 is 6 with a remainder of 51.
Put 6 as the next digit of the answer. 
Result so far: 26.0
The remainder is 51 after subtracting 486 from 537.
Grab the next digit (7) from the dividend, add it to 51, then carry on: 517 / 81

Let's proceed to step 5:
The number 81 fits into 517 6 times, leaving a remainder of 31.
Write down 6 as next digit of the result. 
Result so far: 266.0
If we subtract 486 from 517, we get 31.
Grab the next digit (1) from the dividend, add it to 31, then carry on: 311 / 81

Advancing to step 6:
81 can be fit into 311 3 times, resulting in a remainder of 68.
The next digit of our result is 3. 
Result so far: 2663.0
Deduct 243 from 311 and we're left with 68.
Since there are no more digits in the dividend, we add a zero to the remainder making it 680, and continue the process.

Moving on to step 7:
81 can be fit into 680 8 times, resulting in a remainder of 32.
Write down 8 as next digit of the result. 
Result so far: 2663.8
Deduct 648 from 680 and we're left with 32.
Since there are no more digits in the dividend, we add a zero to the remainder making it 320, and continue the process.

Let's proceed to step 8:
If we divide 320 by 81, we get 3 and a remainder of 77.
The number 3 becomes the next digit in our result. 
Result so far: 2663.83
Subtract 243 from 320 to get 77.
Since there are no more digits in the dividend, we add a zero to the remainder making it 770, and continue the process.

Moving on to step 9:
770 divided by 81 is 9 with a remainder of 41.
The next digit of our result is 9. 
Result so far: 2663.839
Subtracting 729 from 770 leaves us with 41.
Since there are no more digits in the dividend, we add a zero to the remainder making it 410, and continue the process.

Let's proceed to step 10:
410 divided by 81 is 5 with a remainder of 5.
Use 5 as the next digit of our solution. 
Result so far: 2663.8395
Subtracting 405 from 410 leaves us with 5.
Since there are no more digits in the dividend, we add a zero to the remainder making it 50, and continue the process.

Moving on to step 11:
The number 81 fits into 50 0 times, leaving a remainder of 50.
Write down 0 as next digit of the result. 
Result so far: 2663.8395
If we subtract 0 from 50, we get 50.
Since there are no more digits in the dividend, we add a zero to the remainder making it 500, and continue the process.

Advancing to step 12:
If we divide 500 by 81, we get 6 and a remainder of 14.
The number 6 becomes the next digit in our result. 
Result so far: 2663.839506
Deduct 486 from 500 and we're left with 14.
Since there are no more digits in the dividend, we add a zero to the remainder making it 140, and continue the process.

Advancing to step 13:
140 divided by 81 is 1 with a remainder of 59.
Write down 1 as next digit of the result. 
Result so far: 2663.8395061
If we take 81 away from 140, we end up with 59.
Since there are no more digits in the dividend, we add a zero to the remainder making it 590, and continue the process.

Going ahead to step 14:
The number 81 fits into 590 7 times, leaving a remainder of 23.
Put 7 as the next digit of the answer. 
Result so far: 2663.83950617
Deduct 567 from 590 and we're left with 23.
Since there are no more digits in the dividend, we add a zero to the remainder making it 230, and continue the process.

After the division, we end up with 2663.83950617 and a remainder of 2.3e-08.