81666031 ÷ 587 
Our goal is to divide 81666031 by 587.

Moving on to step 1:
8 divided by 587 is 0 with a remainder of 8.
The next digit of our result is 0. 
Result so far: 0.0
If we subtract 0 from 8, we get 8.
Append the next digit (1) from the dividend to 8 and continue with: 81 / 587

Let's proceed to step 2:
587 goes into 81 0 times with a remainder of 81.
The next digit of our result is 0. 
Result so far: 0.0
If we subtract 0 from 81, we get 81.
Grab the next digit (6) from the dividend, add it to 81, then carry on: 816 / 587

On to step 3:
If we divide 816 by 587, we get 1 and a remainder of 229.
Write down 1 as next digit of the result. 
Result so far: 1.0
If we take 587 away from 816, we end up with 229.
Take the next digit (6) from the dividend and append it to 229, then repeat: 2296 / 587

Let's proceed to step 4:
587 goes into 2296 3 times with a remainder of 535.
Use 3 as the next digit of our solution. 
Result so far: 13.0
If we take 1761 away from 2296, we end up with 535.
Take the next digit (6) from the dividend and append it to 535, then repeat: 5356 / 587

Let's proceed to step 5:
The number 587 fits into 5356 9 times, leaving a remainder of 73.
The number 9 becomes the next digit in our result. 
Result so far: 139.0
Subtract 5283 from 5356 to get 73.
Fetch the next digit (0) from the dividend, attach it to 73 and continue: 730 / 587

Moving on to step 6:
587 can be fit into 730 1 times, resulting in a remainder of 143.
Record the quotient 1 as the next digit in the result. 
Result so far: 1391.0
Subtracting 587 from 730 leaves us with 143.
Append the next digit (3) from the dividend to 143 and continue with: 1433 / 587

Step 7:
The number 587 fits into 1433 2 times, leaving a remainder of 259.
The next digit of our result is 2. 
Result so far: 13912.0
Subtracting 1174 from 1433 leaves us with 259.
Take the next digit (1) from the dividend and append it to 259, then repeat: 2591 / 587

Let's proceed to step 8:
587 goes into 2591 4 times with a remainder of 243.
The next digit of our result is 4. 
Result so far: 139124.0
Subtract 2348 from 2591 to get 243.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2430, and continue the process.

Step 9:
2430 divided by 587 is 4 with a remainder of 82.
Record the quotient 4 as the next digit in the result. 
Result so far: 139124.4
Subtracting 2348 from 2430 leaves us with 82.
Since there are no more digits in the dividend, we add a zero to the remainder making it 820, and continue the process.

Advancing to step 10:
587 goes into 820 1 times with a remainder of 233.
Put 1 as the next digit of the answer. 
Result so far: 139124.41
The remainder is 233 after subtracting 587 from 820.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2330, and continue the process.

Going ahead to step 11:
The number 587 fits into 2330 3 times, leaving a remainder of 569.
The next digit of our result is 3. 
Result so far: 139124.413
If we subtract 1761 from 2330, we get 569.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5690, and continue the process.

Going ahead to step 12:
The number 587 fits into 5690 9 times, leaving a remainder of 407.
Use 9 as the next digit of our solution. 
Result so far: 139124.4139
If we subtract 5283 from 5690, we get 407.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4070, and continue the process.

On to step 13:
587 goes into 4070 6 times with a remainder of 548.
The number 6 becomes the next digit in our result. 
Result so far: 139124.41396
Subtract 3522 from 4070 to get 548.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5480, and continue the process.

Moving on to step 14:
587 can be fit into 5480 9 times, resulting in a remainder of 197.
Put 9 as the next digit of the answer. 
Result so far: 139124.413969
The remainder is 197 after subtracting 5283 from 5480.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1970, and continue the process.

Going ahead to step 15:
When dividing 1970 by 587, we get 3 with a remainder of 209.
Put 3 as the next digit of the answer. 
Result so far: 139124.4139693
The remainder is 209 after subtracting 1761 from 1970.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2090, and continue the process.

Moving on to step 16:
587 can be fit into 2090 3 times, resulting in a remainder of 329.
The number 3 becomes the next digit in our result. 
Result so far: 139124.41396933
The remainder is 329 after subtracting 1761 from 2090.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3290, and continue the process.

In conclusion, the division gives 139124.41396933 with a balance of 3.29e-07.