39375321 divided by 806 
Our goal is to divide 39375321 by 806.

On to step 1:
The number 806 fits into 3 0 times, leaving a remainder of 3.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Subtract 0 from 3 to get 3.
Take the next digit (9) from the dividend and append it to 3, then repeat: 39 / 806

Advancing to step 2:
39 divided by 806 is 0 with a remainder of 39.
Put 0 as the next digit of the answer. 
Result so far: 0.0
The remainder is 39 after subtracting 0 from 39.
Include the next digit (3) from the dividend after 39, then repeat: 393 / 806

Step 3:
The number 806 fits into 393 0 times, leaving a remainder of 393.
Write down 0 as next digit of the result. 
Result so far: 0.0
Subtracting 0 from 393 leaves us with 393.
Append the next digit (7) from the dividend to 393 and continue with: 3937 / 806

Going ahead to step 4:
806 can be fit into 3937 4 times, resulting in a remainder of 713.
The next digit of our result is 4. 
Result so far: 4.0
Subtract 3224 from 3937 to get 713.
Append the next digit (5) from the dividend to 713 and continue with: 7135 / 806

Step 5:
806 can be fit into 7135 8 times, resulting in a remainder of 687.
Record the quotient 8 as the next digit in the result. 
Result so far: 48.0
Deduct 6448 from 7135 and we're left with 687.
Take the next digit (3) from the dividend and append it to 687, then repeat: 6873 / 806

Going ahead to step 6:
806 goes into 6873 8 times with a remainder of 425.
Put 8 as the next digit of the answer. 
Result so far: 488.0
The remainder is 425 after subtracting 6448 from 6873.
Include the next digit (2) from the dividend after 425, then repeat: 4252 / 806

Advancing to step 7:
The number 806 fits into 4252 5 times, leaving a remainder of 222.
The number 5 becomes the next digit in our result. 
Result so far: 4885.0
Deduct 4030 from 4252 and we're left with 222.
Append the next digit (1) from the dividend to 222 and continue with: 2221 / 806

Step 8:
If we divide 2221 by 806, we get 2 and a remainder of 609.
Use 2 as the next digit of our solution. 
Result so far: 48852.0
Subtract 1612 from 2221 to get 609.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6090, and continue the process.

Going ahead to step 9:
806 can be fit into 6090 7 times, resulting in a remainder of 448.
Put 7 as the next digit of the answer. 
Result so far: 48852.7
Subtracting 5642 from 6090 leaves us with 448.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4480, and continue the process.

On to step 10:
806 goes into 4480 5 times with a remainder of 450.
The number 5 becomes the next digit in our result. 
Result so far: 48852.75
The remainder is 450 after subtracting 4030 from 4480.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4500, and continue the process.

Going ahead to step 11:
If we divide 4500 by 806, we get 5 and a remainder of 470.
Put 5 as the next digit of the answer. 
Result so far: 48852.755
Subtracting 4030 from 4500 leaves us with 470.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4700, and continue the process.

The final outcome is 48852.755, with a leftover of 0.047.