We're dividing 39793329 by 815 
We want to divide 39793329 by 815.

Step 1:
815 goes into 3 0 times with a remainder of 3.
Use 0 as the next digit of our solution. 
Result so far: 0.0
The remainder is 3 after subtracting 0 from 3.
Append the next digit (9) from the dividend to 3 and continue with: 39 / 815

On to step 2:
815 goes into 39 0 times with a remainder of 39.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Subtracting 0 from 39 leaves us with 39.
Fetch the next digit (7) from the dividend, attach it to 39 and continue: 397 / 815

On to step 3:
If we divide 397 by 815, we get 0 and a remainder of 397.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Subtracting 0 from 397 leaves us with 397.
Take the next digit (9) from the dividend and append it to 397, then repeat: 3979 / 815

Moving on to step 4:
If we divide 3979 by 815, we get 4 and a remainder of 719.
Put 4 as the next digit of the answer. 
Result so far: 4.0
Subtract 3260 from 3979 to get 719.
Append the next digit (3) from the dividend to 719 and continue with: 7193 / 815

Step 5:
The number 815 fits into 7193 8 times, leaving a remainder of 673.
Record the quotient 8 as the next digit in the result. 
Result so far: 48.0
If we subtract 6520 from 7193, we get 673.
Include the next digit (3) from the dividend after 673, then repeat: 6733 / 815

Moving on to step 6:
The number 815 fits into 6733 8 times, leaving a remainder of 213.
Put 8 as the next digit of the answer. 
Result so far: 488.0
Deduct 6520 from 6733 and we're left with 213.
Bring next digit (2) of the dividend behind the 213 and repeat the process: 2132 / 815

Step 7:
When dividing 2132 by 815, we get 2 with a remainder of 502.
Put 2 as the next digit of the answer. 
Result so far: 4882.0
If we subtract 1630 from 2132, we get 502.
Include the next digit (9) from the dividend after 502, then repeat: 5029 / 815

Going ahead to step 8:
If we divide 5029 by 815, we get 6 and a remainder of 139.
The number 6 becomes the next digit in our result. 
Result so far: 48826.0
If we take 4890 away from 5029, we end up with 139.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1390, and continue the process.

Advancing to step 9:
If we divide 1390 by 815, we get 1 and a remainder of 575.
Use 1 as the next digit of our solution. 
Result so far: 48826.1
If we subtract 815 from 1390, we get 575.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5750, and continue the process.

Advancing to step 10:
If we divide 5750 by 815, we get 7 and a remainder of 45.
The next digit of our result is 7. 
Result so far: 48826.17
Subtract 5705 from 5750 to get 45.
Since there are no more digits in the dividend, we add a zero to the remainder making it 450, and continue the process.

Step 11:
815 goes into 450 0 times with a remainder of 450.
The number 0 becomes the next digit in our result. 
Result so far: 48826.17
The remainder is 450 after subtracting 0 from 450.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4500, and continue the process.

Moving on to step 12:
815 goes into 4500 5 times with a remainder of 425.
Use 5 as the next digit of our solution. 
Result so far: 48826.1705
If we take 4075 away from 4500, we end up with 425.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4250, and continue the process.

Going ahead to step 13:
When dividing 4250 by 815, we get 5 with a remainder of 175.
Use 5 as the next digit of our solution. 
Result so far: 48826.17055
Subtract 4075 from 4250 to get 175.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1750, and continue the process.

After the division, we end up with 48826.17055 and a remainder of 0.000175.