We look at the division of 138799 by 9 
Our goal is to divide 138799 by 9.

Moving on to step 1:
If we divide 1 by 9, we get 0 and a remainder of 1.
Use 0 as the next digit of our solution. 
Result so far: 0.0
The remainder is 1 after subtracting 0 from 1.
Include the next digit (3) from the dividend after 1, then repeat: 13 / 9

Step 2:
9 goes into 13 1 times with a remainder of 4.
Put 1 as the next digit of the answer. 
Result so far: 1.0
Deduct 9 from 13 and we're left with 4.
Grab the next digit (8) from the dividend, add it to 4, then carry on: 48 / 9

Moving on to step 3:
48 divided by 9 is 5 with a remainder of 3.
Use 5 as the next digit of our solution. 
Result so far: 15.0
The remainder is 3 after subtracting 45 from 48.
Take the next digit (7) from the dividend and append it to 3, then repeat: 37 / 9

Let's proceed to step 4:
If we divide 37 by 9, we get 4 and a remainder of 1.
Put 4 as the next digit of the answer. 
Result so far: 154.0
If we take 36 away from 37, we end up with 1.
Include the next digit (9) from the dividend after 1, then repeat: 19 / 9

On to step 5:
The number 9 fits into 19 2 times, leaving a remainder of 1.
Write down 2 as next digit of the result. 
Result so far: 1542.0
Deduct 18 from 19 and we're left with 1.
Include the next digit (9) from the dividend after 1, then repeat: 19 / 9

Going ahead to step 6:
9 goes into 19 2 times with a remainder of 1.
Write down 2 as next digit of the result. 
Result so far: 15422.0
If we subtract 18 from 19, we get 1.
Since there are no more digits in the dividend, we add a zero to the remainder making it 10, and continue the process.

Going ahead to step 7:
9 goes into 10 1 times with a remainder of 1.
Put 1 as the next digit of the answer. 
Result so far: 15422.1
If we subtract 9 from 10, we get 1.
Since there are no more digits in the dividend, we add a zero to the remainder making it 10, and continue the process.

Going ahead to step 8:
When dividing 10 by 9, we get 1 with a remainder of 1.
Use 1 as the next digit of our solution. 
Result so far: 15422.11
If we subtract 9 from 10, we get 1.
Since there are no more digits in the dividend, we add a zero to the remainder making it 10, and continue the process.

The final outcome is 15422.11, with a leftover of 0.001.