We look at the division of 18039 by 91 
Our goal is to divide 18039 by 91.

Step 1:
When dividing 1 by 91, we get 0 with a remainder of 1.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
The remainder is 1 after subtracting 0 from 1.
Bring next digit (8) of the dividend behind the 1 and repeat the process: 18 / 91

Moving on to step 2:
If we divide 18 by 91, we get 0 and a remainder of 18.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Deduct 0 from 18 and we're left with 18.
Grab the next digit (0) from the dividend, add it to 18, then carry on: 180 / 91

Step 3:
91 goes into 180 1 times with a remainder of 89.
The next digit of our result is 1. 
Result so far: 1.0
Subtract 91 from 180 to get 89.
Include the next digit (3) from the dividend after 89, then repeat: 893 / 91

Let's proceed to step 4:
91 can be fit into 893 9 times, resulting in a remainder of 74.
Put 9 as the next digit of the answer. 
Result so far: 19.0
Deduct 819 from 893 and we're left with 74.
Append the next digit (9) from the dividend to 74 and continue with: 749 / 91

On to step 5:
When dividing 749 by 91, we get 8 with a remainder of 21.
The number 8 becomes the next digit in our result. 
Result so far: 198.0
Deduct 728 from 749 and we're left with 21.
Since there are no more digits in the dividend, we add a zero to the remainder making it 210, and continue the process.

Moving on to step 6:
When dividing 210 by 91, we get 2 with a remainder of 28.
Record the quotient 2 as the next digit in the result. 
Result so far: 198.2
If we subtract 182 from 210, we get 28.
Since there are no more digits in the dividend, we add a zero to the remainder making it 280, and continue the process.

Going ahead to step 7:
91 goes into 280 3 times with a remainder of 7.
Record the quotient 3 as the next digit in the result. 
Result so far: 198.23
Subtract 273 from 280 to get 7.
Since there are no more digits in the dividend, we add a zero to the remainder making it 70, and continue the process.

Step 8:
70 divided by 91 is 0 with a remainder of 70.
Record the quotient 0 as the next digit in the result. 
Result so far: 198.23
Subtract 0 from 70 to get 70.
Since there are no more digits in the dividend, we add a zero to the remainder making it 700, and continue the process.

On to step 9:
The number 91 fits into 700 7 times, leaving a remainder of 63.
Write down 7 as next digit of the result. 
Result so far: 198.2307
Subtracting 637 from 700 leaves us with 63.
Since there are no more digits in the dividend, we add a zero to the remainder making it 630, and continue the process.

Advancing to step 10:
91 can be fit into 630 6 times, resulting in a remainder of 84.
Put 6 as the next digit of the answer. 
Result so far: 198.23076
Deduct 546 from 630 and we're left with 84.
Since there are no more digits in the dividend, we add a zero to the remainder making it 840, and continue the process.

Going ahead to step 11:
The number 91 fits into 840 9 times, leaving a remainder of 21.
Record the quotient 9 as the next digit in the result. 
Result so far: 198.230769
Subtract 819 from 840 to get 21.
Since there are no more digits in the dividend, we add a zero to the remainder making it 210, and continue the process.

Advancing to step 12:
The number 91 fits into 210 2 times, leaving a remainder of 28.
Use 2 as the next digit of our solution. 
Result so far: 198.2307692
If we subtract 182 from 210, we get 28.
Since there are no more digits in the dividend, we add a zero to the remainder making it 280, and continue the process.

On to step 13:
When dividing 280 by 91, we get 3 with a remainder of 7.
Put 3 as the next digit of the answer. 
Result so far: 198.23076923
Subtracting 273 from 280 leaves us with 7.
Since there are no more digits in the dividend, we add a zero to the remainder making it 70, and continue the process.

In conclusion, the division gives 198.23076923 with a balance of 7e-09.