We're dividing 815731 by 66 
We want to divide 815731 by 66.

Moving on to step 1:
66 can be fit into 8 0 times, resulting in 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 / 66

Advancing to step 2:
66 can be fit into 81 1 times, resulting in a remainder of 15.
Use 1 as the next digit of our solution. 
Result so far: 1.0
If we subtract 66 from 81, we get 15.
Fetch the next digit (5) from the dividend, attach it to 15 and continue: 155 / 66

Moving on to step 3:
When dividing 155 by 66, we get 2 with a remainder of 23.
Put 2 as the next digit of the answer. 
Result so far: 12.0
If we subtract 132 from 155, we get 23.
Grab the next digit (7) from the dividend, add it to 23, then carry on: 237 / 66

On to step 4:
The number 66 fits into 237 3 times, leaving a remainder of 39.
Use 3 as the next digit of our solution. 
Result so far: 123.0
Deduct 198 from 237 and we're left with 39.
Append the next digit (3) from the dividend to 39 and continue with: 393 / 66

Moving on to step 5:
66 goes into 393 5 times with a remainder of 63.
The next digit of our result is 5. 
Result so far: 1235.0
Subtracting 330 from 393 leaves us with 63.
Include the next digit (1) from the dividend after 63, then repeat: 631 / 66

Moving on to step 6:
When dividing 631 by 66, we get 9 with a remainder of 37.
Write down 9 as next digit of the result. 
Result so far: 12359.0
If we take 594 away from 631, we end up with 37.
Since there are no more digits in the dividend, we add a zero to the remainder making it 370, and continue the process.

Let's proceed to step 7:
When dividing 370 by 66, we get 5 with a remainder of 40.
The number 5 becomes the next digit in our result. 
Result so far: 12359.5
Subtract 330 from 370 to get 40.
Since there are no more digits in the dividend, we add a zero to the remainder making it 400, and continue the process.

Advancing to step 8:
The number 66 fits into 400 6 times, leaving a remainder of 4.
The next digit of our result is 6. 
Result so far: 12359.56
The remainder is 4 after subtracting 396 from 400.
Since there are no more digits in the dividend, we add a zero to the remainder making it 40, and continue the process.

Let's proceed to step 9:
If we divide 40 by 66, we get 0 and a remainder of 40.
Write down 0 as next digit of the result. 
Result so far: 12359.56
Subtract 0 from 40 to get 40.
Since there are no more digits in the dividend, we add a zero to the remainder making it 400, and continue the process.

Going ahead to step 10:
When dividing 400 by 66, we get 6 with a remainder of 4.
The next digit of our result is 6. 
Result so far: 12359.5606
Subtracting 396 from 400 leaves us with 4.
Since there are no more digits in the dividend, we add a zero to the remainder making it 40, and continue the process.

Going ahead to step 11:
66 can be fit into 40 0 times, resulting in a remainder of 40.
The next digit of our result is 0. 
Result so far: 12359.5606
If we take 0 away from 40, we end up with 40.
Since there are no more digits in the dividend, we add a zero to the remainder making it 400, and continue the process.

Going ahead to step 12:
400 divided by 66 is 6 with a remainder of 4.
Put 6 as the next digit of the answer. 
Result so far: 12359.560606
The remainder is 4 after subtracting 396 from 400.
Since there are no more digits in the dividend, we add a zero to the remainder making it 40, and continue the process.

Let's proceed to step 13:
If we divide 40 by 66, we get 0 and a remainder of 40.
Record the quotient 0 as the next digit in the result. 
Result so far: 12359.560606
If we take 0 away from 40, we end up with 40.
Since there are no more digits in the dividend, we add a zero to the remainder making it 400, and continue the process.

Moving on to step 14:
66 can be fit into 400 6 times, resulting in a remainder of 4.
Use 6 as the next digit of our solution. 
Result so far: 12359.56060606
If we take 396 away from 400, we end up with 4.
Since there are no more digits in the dividend, we add a zero to the remainder making it 40, and continue the process.

The final result is 12359.56060606 with a remainder of 4e-09.