We're dividing 139036 by 87 
We want to divide 139036 by 87.

Advancing to step 1:
If we divide 1 by 87, we get 0 and a remainder of 1.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
The remainder is 1 after subtracting 0 from 1.
Append the next digit (3) from the dividend to 1 and continue with: 13 / 87

Moving on to step 2:
87 can be fit into 13 0 times, resulting in a remainder of 13.
Put 0 as the next digit of the answer. 
Result so far: 0.0
The remainder is 13 after subtracting 0 from 13.
Fetch the next digit (9) from the dividend, attach it to 13 and continue: 139 / 87

Let's proceed to step 3:
If we divide 139 by 87, we get 1 and a remainder of 52.
Write down 1 as next digit of the result. 
Result so far: 1.0
Subtract 87 from 139 to get 52.
Append the next digit (0) from the dividend to 52 and continue with: 520 / 87

On to step 4:
The number 87 fits into 520 5 times, leaving a remainder of 85.
The next digit of our result is 5. 
Result so far: 15.0
Subtract 435 from 520 to get 85.
Include the next digit (3) from the dividend after 85, then repeat: 853 / 87

Let's proceed to step 5:
The number 87 fits into 853 9 times, leaving a remainder of 70.
The next digit of our result is 9. 
Result so far: 159.0
The remainder is 70 after subtracting 783 from 853.
Include the next digit (6) from the dividend after 70, then repeat: 706 / 87

Let's proceed to step 6:
If we divide 706 by 87, we get 8 and a remainder of 10.
Use 8 as the next digit of our solution. 
Result so far: 1598.0
Deduct 696 from 706 and we're left 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.

Moving on to step 7:
87 can be fit into 100 1 times, resulting in a remainder of 13.
Record the quotient 1 as the next digit in the result. 
Result so far: 1598.1
If we subtract 87 from 100, we get 13.
Since there are no more digits in the dividend, we add a zero to the remainder making it 130, and continue the process.

Advancing to step 8:
If we divide 130 by 87, we get 1 and a remainder of 43.
Record the quotient 1 as the next digit in the result. 
Result so far: 1598.11
The remainder is 43 after subtracting 87 from 130.
Since there are no more digits in the dividend, we add a zero to the remainder making it 430, and continue the process.

After the division, we end up with 1598.11 and a remainder of 0.043.