We look at the division of 159571 by 39 
We want to divide 159571 by 39.

Moving on to step 1:
The number 39 fits into 1 0 times, leaving a remainder of 1.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
If we take 0 away from 1, we end up with 1.
Grab the next digit (5) from the dividend, add it to 1, then carry on: 15 / 39

Moving on to step 2:
If we divide 15 by 39, we get 0 and a remainder of 15.
Write down 0 as next digit of the result. 
Result so far: 0.0
Deduct 0 from 15 and we're left with 15.
Fetch the next digit (9) from the dividend, attach it to 15 and continue: 159 / 39

Step 3:
159 divided by 39 is 4 with a remainder of 3.
Write down 4 as next digit of the result. 
Result so far: 4.0
If we take 156 away from 159, we end up with 3.
Grab the next digit (5) from the dividend, add it to 3, then carry on: 35 / 39

Step 4:
The number 39 fits into 35 0 times, leaving a remainder of 35.
Write down 0 as next digit of the result. 
Result so far: 40.0
Subtracting 0 from 35 leaves us with 35.
Grab the next digit (7) from the dividend, add it to 35, then carry on: 357 / 39

Going ahead to step 5:
357 divided by 39 is 9 with a remainder of 6.
Write down 9 as next digit of the result. 
Result so far: 409.0
Subtract 351 from 357 to get 6.
Bring next digit (1) of the dividend behind the 6 and repeat the process: 61 / 39

Going ahead to step 6:
If we divide 61 by 39, we get 1 and a remainder of 22.
Write down 1 as next digit of the result. 
Result so far: 4091.0
Subtract 39 from 61 to get 22.
Since there are no more digits in the dividend, we add a zero to the remainder making it 220, and continue the process.

Moving on to step 7:
The number 39 fits into 220 5 times, leaving a remainder of 25.
Put 5 as the next digit of the answer. 
Result so far: 4091.5
Subtracting 195 from 220 leaves us with 25.
Since there are no more digits in the dividend, we add a zero to the remainder making it 250, and continue the process.

Going ahead to step 8:
250 divided by 39 is 6 with a remainder of 16.
Record the quotient 6 as the next digit in the result. 
Result so far: 4091.56
Subtracting 234 from 250 leaves us with 16.
Since there are no more digits in the dividend, we add a zero to the remainder making it 160, and continue the process.

Advancing to step 9:
If we divide 160 by 39, we get 4 and a remainder of 4.
Write down 4 as next digit of the result. 
Result so far: 4091.564
Deduct 156 from 160 and we're left 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 10:
When dividing 40 by 39, we get 1 with a remainder of 1.
Use 1 as the next digit of our solution. 
Result so far: 4091.5641
If we take 39 away from 40, we end up with 1.
Since there are no more digits in the dividend, we add a zero to the remainder making it 10, and continue the process.

On to step 11:
39 can be fit into 10 0 times, resulting in a remainder of 10.
Record the quotient 0 as the next digit in the result. 
Result so far: 4091.5641
If we take 0 away from 10, we end up with 10.
Since there are no more digits in the dividend, we add a zero to the remainder making it 100, and continue the process.

Step 12:
39 can be fit into 100 2 times, resulting in a remainder of 22.
Record the quotient 2 as the next digit in the result. 
Result so far: 4091.564102
If we subtract 78 from 100, we get 22.
Since there are no more digits in the dividend, we add a zero to the remainder making it 220, and continue the process.

Step 13:
When dividing 220 by 39, we get 5 with a remainder of 25.
Record the quotient 5 as the next digit in the result. 
Result so far: 4091.5641025
Deduct 195 from 220 and we're left with 25.
Since there are no more digits in the dividend, we add a zero to the remainder making it 250, and continue the process.

Step 14:
If we divide 250 by 39, we get 6 and a remainder of 16.
Use 6 as the next digit of our solution. 
Result so far: 4091.56410256
Deduct 234 from 250 and we're left with 16.
Since there are no more digits in the dividend, we add a zero to the remainder making it 160, and continue the process.

After the division, we end up with 4091.56410256 and a remainder of 1.6e-08.