We look at the division of 81588311 by 231 
We're looking to find how many times 231 goes into 81588311.

Let's proceed to step 1:
8 divided by 231 is 0 with a remainder of 8.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
If we take 0 away from 8, we end up with 8.
Append the next digit (1) from the dividend to 8 and continue with: 81 / 231

Step 2:
231 goes into 81 0 times with a remainder of 81.
Put 0 as the next digit of the answer. 
Result so far: 0.0
If we take 0 away from 81, we end up with 81.
Take the next digit (5) from the dividend and append it to 81, then repeat: 815 / 231

Moving on to step 3:
815 divided by 231 is 3 with a remainder of 122.
The number 3 becomes the next digit in our result. 
Result so far: 3.0
The remainder is 122 after subtracting 693 from 815.
Fetch the next digit (8) from the dividend, attach it to 122 and continue: 1228 / 231

On to step 4:
231 can be fit into 1228 5 times, resulting in a remainder of 73.
Write down 5 as next digit of the result. 
Result so far: 35.0
The remainder is 73 after subtracting 1155 from 1228.
Include the next digit (8) from the dividend after 73, then repeat: 738 / 231

Advancing to step 5:
If we divide 738 by 231, we get 3 and a remainder of 45.
Record the quotient 3 as the next digit in the result. 
Result so far: 353.0
Subtract 693 from 738 to get 45.
Append the next digit (3) from the dividend to 45 and continue with: 453 / 231

Let's proceed to step 6:
If we divide 453 by 231, we get 1 and a remainder of 222.
Write down 1 as next digit of the result. 
Result so far: 3531.0
Deduct 231 from 453 and we're left with 222.
Include the next digit (1) from the dividend after 222, then repeat: 2221 / 231

Moving on to step 7:
When dividing 2221 by 231, we get 9 with a remainder of 142.
Put 9 as the next digit of the answer. 
Result so far: 35319.0
Subtracting 2079 from 2221 leaves us with 142.
Grab the next digit (1) from the dividend, add it to 142, then carry on: 1421 / 231

Moving on to step 8:
If we divide 1421 by 231, we get 6 and a remainder of 35.
The number 6 becomes the next digit in our result. 
Result so far: 353196.0
If we take 1386 away from 1421, we end up with 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 9:
The number 231 fits into 350 1 times, leaving a remainder of 119.
Write down 1 as next digit of the result. 
Result so far: 353196.1
Subtract 231 from 350 to get 119.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1190, and continue the process.

Going ahead to step 10:
When dividing 1190 by 231, we get 5 with a remainder of 35.
Use 5 as the next digit of our solution. 
Result so far: 353196.15
Subtract 1155 from 1190 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.

On to step 11:
350 divided by 231 is 1 with a remainder of 119.
The number 1 becomes the next digit in our result. 
Result so far: 353196.151
The remainder is 119 after subtracting 231 from 350.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1190, and continue the process.

On to step 12:
If we divide 1190 by 231, we get 5 and a remainder of 35.
Use 5 as the next digit of our solution. 
Result so far: 353196.1515
If we take 1155 away from 1190, we end up with 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 13:
231 goes into 350 1 times with a remainder of 119.
The next digit of our result is 1. 
Result so far: 353196.15151
Subtract 231 from 350 to get 119.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1190, and continue the process.

Let's proceed to step 14:
231 can be fit into 1190 5 times, resulting in a remainder of 35.
Write down 5 as next digit of the result. 
Result so far: 353196.151515
Subtract 1155 from 1190 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.

Step 15:
When dividing 350 by 231, we get 1 with a remainder of 119.
The number 1 becomes the next digit in our result. 
Result so far: 353196.1515151
If we take 231 away from 350, we end up with 119.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1190, and continue the process.

Let's proceed to step 16:
When dividing 1190 by 231, we get 5 with a remainder of 35.
Put 5 as the next digit of the answer. 
Result so far: 353196.15151515
The remainder is 35 after subtracting 1155 from 1190.
Since there are no more digits in the dividend, we add a zero to the remainder making it 350, and continue the process.

In conclusion, the division gives 353196.15151515 with a balance of 3.5e-08.