217988 divided by 81 
We want to figure out the number of times 217988 can be divided by 81.

Let's proceed to step 1:
81 can be fit into 2 0 times, resulting in a remainder of 2.
Write down 0 as next digit of the result. 
Result so far: 0.0
If we subtract 0 from 2, we get 2.
Take the next digit (1) from the dividend and append it to 2, then repeat: 21 / 81

On to step 2:
21 divided by 81 is 0 with a remainder of 21.
Write down 0 as next digit of the result. 
Result so far: 0.0
If we subtract 0 from 21, we get 21.
Append the next digit (7) from the dividend to 21 and continue with: 217 / 81

Let's proceed to step 3:
81 goes into 217 2 times with a remainder of 55.
The next digit of our result is 2. 
Result so far: 2.0
The remainder is 55 after subtracting 162 from 217.
Bring next digit (9) of the dividend behind the 55 and repeat the process: 559 / 81

Let's proceed to step 4:
The number 81 fits into 559 6 times, leaving a remainder of 73.
Record the quotient 6 as the next digit in the result. 
Result so far: 26.0
If we subtract 486 from 559, we get 73.
Bring next digit (8) of the dividend behind the 73 and repeat the process: 738 / 81

On to step 5:
When dividing 738 by 81, we get 9 with a remainder of 9.
Put 9 as the next digit of the answer. 
Result so far: 269.0
The remainder is 9 after subtracting 729 from 738.
Include the next digit (8) from the dividend after 9, then repeat: 98 / 81

Let's proceed to step 6:
If we divide 98 by 81, we get 1 and a remainder of 17.
The number 1 becomes the next digit in our result. 
Result so far: 2691.0
The remainder is 17 after subtracting 81 from 98.
Since there are no more digits in the dividend, we add a zero to the remainder making it 170, and continue the process.

On to step 7:
When dividing 170 by 81, we get 2 with a remainder of 8.
Record the quotient 2 as the next digit in the result. 
Result so far: 2691.2
If we take 162 away from 170, we end up with 8.
Since there are no more digits in the dividend, we add a zero to the remainder making it 80, and continue the process.

On to step 8:
80 divided by 81 is 0 with a remainder of 80.
Write down 0 as next digit of the result. 
Result so far: 2691.2
The remainder is 80 after subtracting 0 from 80.
Since there are no more digits in the dividend, we add a zero to the remainder making it 800, and continue the process.

Advancing to step 9:
800 divided by 81 is 9 with a remainder of 71.
The next digit of our result is 9. 
Result so far: 2691.209
If we subtract 729 from 800, we get 71.
Since there are no more digits in the dividend, we add a zero to the remainder making it 710, and continue the process.

On to step 10:
The number 81 fits into 710 8 times, leaving a remainder of 62.
Record the quotient 8 as the next digit in the result. 
Result so far: 2691.2098
If we subtract 648 from 710, we get 62.
Since there are no more digits in the dividend, we add a zero to the remainder making it 620, and continue the process.

Going ahead to step 11:
If we divide 620 by 81, we get 7 and a remainder of 53.
Write down 7 as next digit of the result. 
Result so far: 2691.20987
Subtracting 567 from 620 leaves us with 53.
Since there are no more digits in the dividend, we add a zero to the remainder making it 530, and continue the process.

Moving on to step 12:
If we divide 530 by 81, we get 6 and a remainder of 44.
Put 6 as the next digit of the answer. 
Result so far: 2691.209876
If we take 486 away from 530, we end up with 44.
Since there are no more digits in the dividend, we add a zero to the remainder making it 440, and continue the process.

Going ahead to step 13:
The number 81 fits into 440 5 times, leaving a remainder of 35.
Record the quotient 5 as the next digit in the result. 
Result so far: 2691.2098765
Subtract 405 from 440 to get 35.
Since there are no more digits in the dividend, we add a zero to the remainder making it 350, and continue the process.

Let's proceed to step 14:
If we divide 350 by 81, we get 4 and a remainder of 26.
Put 4 as the next digit of the answer. 
Result so far: 2691.20987654
Subtracting 324 from 350 leaves us with 26.
Since there are no more digits in the dividend, we add a zero to the remainder making it 260, and continue the process.

Our division results in 2691.20987654 with a remaining 2.6e-08.