We look at the division of 39485436 by 231 
We want to divide 39485436 by 231.

Let's proceed to step 1:
231 can be fit into 3 0 times, resulting in a remainder of 3.
Write down 0 as next digit of the result. 
Result so far: 0.0
Deduct 0 from 3 and we're left with 3.
Append the next digit (9) from the dividend to 3 and continue with: 39 / 231

On to step 2:
The number 231 fits into 39 0 times, leaving a remainder of 39.
Use 0 as the next digit of our solution. 
Result so far: 0.0
If we subtract 0 from 39, we get 39.
Grab the next digit (4) from the dividend, add it to 39, then carry on: 394 / 231

On to step 3:
When dividing 394 by 231, we get 1 with a remainder of 163.
The next digit of our result is 1. 
Result so far: 1.0
If we subtract 231 from 394, we get 163.
Bring next digit (8) of the dividend behind the 163 and repeat the process: 1638 / 231

Moving on to step 4:
1638 divided by 231 is 7 with a remainder of 21.
Use 7 as the next digit of our solution. 
Result so far: 17.0
Subtract 1617 from 1638 to get 21.
Append the next digit (5) from the dividend to 21 and continue with: 215 / 231

Step 5:
The number 231 fits into 215 0 times, leaving a remainder of 215.
Use 0 as the next digit of our solution. 
Result so far: 170.0
Subtract 0 from 215 to get 215.
Take the next digit (4) from the dividend and append it to 215, then repeat: 2154 / 231

Advancing to step 6:
If we divide 2154 by 231, we get 9 and a remainder of 75.
Put 9 as the next digit of the answer. 
Result so far: 1709.0
If we take 2079 away from 2154, we end up with 75.
Grab the next digit (3) from the dividend, add it to 75, then carry on: 753 / 231

Step 7:
If we divide 753 by 231, we get 3 and a remainder of 60.
Record the quotient 3 as the next digit in the result. 
Result so far: 17093.0
If we subtract 693 from 753, we get 60.
Take the next digit (6) from the dividend and append it to 60, then repeat: 606 / 231

On to step 8:
231 can be fit into 606 2 times, resulting in a remainder of 144.
Use 2 as the next digit of our solution. 
Result so far: 170932.0
Subtract 462 from 606 to get 144.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1440, and continue the process.

Step 9:
231 goes into 1440 6 times with a remainder of 54.
The number 6 becomes the next digit in our result. 
Result so far: 170932.6
The remainder is 54 after subtracting 1386 from 1440.
Since there are no more digits in the dividend, we add a zero to the remainder making it 540, and continue the process.

Advancing to step 10:
The number 231 fits into 540 2 times, leaving a remainder of 78.
Write down 2 as next digit of the result. 
Result so far: 170932.62
The remainder is 78 after subtracting 462 from 540.
Since there are no more digits in the dividend, we add a zero to the remainder making it 780, and continue the process.

Moving on to step 11:
231 can be fit into 780 3 times, resulting in a remainder of 87.
Put 3 as the next digit of the answer. 
Result so far: 170932.623
The remainder is 87 after subtracting 693 from 780.
Since there are no more digits in the dividend, we add a zero to the remainder making it 870, and continue the process.

Going ahead to step 12:
If we divide 870 by 231, we get 3 and a remainder of 177.
Use 3 as the next digit of our solution. 
Result so far: 170932.6233
If we take 693 away from 870, we end up with 177.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1770, and continue the process.

After the division, we end up with 170932.6233 and a remainder of 0.00177.