We divide 3971431 by 808
We're looking to find how many times 808 goes into 3971431.

On to step 1:
The number 808 fits into 3 0 times, leaving a remainder of 3.
Use 0 as the next digit of our solution. 
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 / 808

On to step 2:
808 can be fit into 39 0 times, resulting in a remainder of 39.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Deduct 0 from 39 and we're left with 39.
Include the next digit (7) from the dividend after 39, then repeat: 397 / 808

Step 3:
397 divided by 808 is 0 with a remainder of 397.
Write down 0 as next digit of the result. 
Result so far: 0.0
Subtract 0 from 397 to get 397.
Include the next digit (1) from the dividend after 397, then repeat: 3971 / 808

On to step 4:
3971 divided by 808 is 4 with a remainder of 739.
Put 4 as the next digit of the answer. 
Result so far: 4.0
Deduct 3232 from 3971 and we're left with 739.
Fetch the next digit (4) from the dividend, attach it to 739 and continue: 7394 / 808

Going ahead to step 5:
808 goes into 7394 9 times with a remainder of 122.
Write down 9 as next digit of the result. 
Result so far: 49.0
If we subtract 7272 from 7394, we get 122.
Include the next digit (3) from the dividend after 122, then repeat: 1223 / 808

Let's proceed to step 6:
808 goes into 1223 1 times with a remainder of 415.
Record the quotient 1 as the next digit in the result. 
Result so far: 491.0
If we subtract 808 from 1223, we get 415.
Include the next digit (1) from the dividend after 415, then repeat: 4151 / 808

Going ahead to step 7:
If we divide 4151 by 808, we get 5 and a remainder of 111.
The next digit of our result is 5. 
Result so far: 4915.0
The remainder is 111 after subtracting 4040 from 4151.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1110, and continue the process.

Let's proceed to step 8:
If we divide 1110 by 808, we get 1 and a remainder of 302.
Record the quotient 1 as the next digit in the result. 
Result so far: 4915.1
If we subtract 808 from 1110, we get 302.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3020, and continue the process.

Step 9:
3020 divided by 808 is 3 with a remainder of 596.
Use 3 as the next digit of our solution. 
Result so far: 4915.13
Deduct 2424 from 3020 and we're left with 596.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5960, and continue the process.

Step 10:
5960 divided by 808 is 7 with a remainder of 304.
Use 7 as the next digit of our solution. 
Result so far: 4915.137
Subtract 5656 from 5960 to get 304.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3040, and continue the process.

Moving on to step 11:
808 goes into 3040 3 times with a remainder of 616.
The next digit of our result is 3. 
Result so far: 4915.1373
The remainder is 616 after subtracting 2424 from 3040.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6160, and continue the process.

Advancing to step 12:
6160 divided by 808 is 7 with a remainder of 504.
Write down 7 as next digit of the result. 
Result so far: 4915.13737
The remainder is 504 after subtracting 5656 from 6160.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5040, and continue the process.

Advancing to step 13:
808 can be fit into 5040 6 times, resulting in a remainder of 192.
Use 6 as the next digit of our solution. 
Result so far: 4915.137376
If we take 4848 away from 5040, we end up with 192.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1920, and continue the process.

On to step 14:
1920 divided by 808 is 2 with a remainder of 304.
The number 2 becomes the next digit in our result. 
Result so far: 4915.1373762
Subtract 1616 from 1920 to get 304.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3040, and continue the process.

Moving on to step 15:
808 goes into 3040 3 times with a remainder of 616.
The next digit of our result is 3. 
Result so far: 4915.13737623
Subtracting 2424 from 3040 leaves us with 616.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6160, and continue the process.

In conclusion, the division gives 4915.13737623 with a balance of 6.16e-07.