We're dividing 139991 by 24 
We want to divide 139991 by 24.

On to step 1:
24 goes into 1 0 times with a remainder of 1.
Write down 0 as next digit of the result. 
Result so far: 0.0
Subtracting 0 from 1 leaves us with 1.
Bring next digit (3) of the dividend behind the 1 and repeat the process: 13 / 24

Going ahead to step 2:
24 goes into 13 0 times with a remainder of 13.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Subtracting 0 from 13 leaves us with 13.
Grab the next digit (9) from the dividend, add it to 13, then carry on: 139 / 24

Going ahead to step 3:
139 divided by 24 is 5 with a remainder of 19.
Write down 5 as next digit of the result. 
Result so far: 5.0
If we take 120 away from 139, we end up with 19.
Grab the next digit (9) from the dividend, add it to 19, then carry on: 199 / 24

Going ahead to step 4:
The number 24 fits into 199 8 times, leaving a remainder of 7.
Put 8 as the next digit of the answer. 
Result so far: 58.0
If we take 192 away from 199, we end up with 7.
Bring next digit (9) of the dividend behind the 7 and repeat the process: 79 / 24

Let's proceed to step 5:
24 can be fit into 79 3 times, resulting in a remainder of 7.
Put 3 as the next digit of the answer. 
Result so far: 583.0
Subtracting 72 from 79 leaves us with 7.
Take the next digit (1) from the dividend and append it to 7, then repeat: 71 / 24

Advancing to step 6:
24 goes into 71 2 times with a remainder of 23.
Write down 2 as next digit of the result. 
Result so far: 5832.0
Deduct 48 from 71 and we're left with 23.
Since there are no more digits in the dividend, we add a zero to the remainder making it 230, and continue the process.

Advancing to step 7:
The number 24 fits into 230 9 times, leaving a remainder of 14.
The next digit of our result is 9. 
Result so far: 5832.9
If we take 216 away from 230, we end up with 14.
Since there are no more digits in the dividend, we add a zero to the remainder making it 140, and continue the process.

Step 8:
When dividing 140 by 24, we get 5 with a remainder of 20.
Put 5 as the next digit of the answer. 
Result so far: 5832.95
If we take 120 away from 140, we end up with 20.
Since there are no more digits in the dividend, we add a zero to the remainder making it 200, and continue the process.

On to step 9:
24 goes into 200 8 times with a remainder of 8.
The number 8 becomes the next digit in our result. 
Result so far: 5832.958
Subtracting 192 from 200 leaves us with 8.
Since there are no more digits in the dividend, we add a zero to the remainder making it 80, and continue the process.

Advancing to step 10:
When dividing 80 by 24, we get 3 with a remainder of 8.
Record the quotient 3 as the next digit in the result. 
Result so far: 5832.9583
Subtracting 72 from 80 leaves us with 8.
Since there are no more digits in the dividend, we add a zero to the remainder making it 80, and continue the process.

Advancing to step 11:
If we divide 80 by 24, we get 3 and a remainder of 8.
The number 3 becomes the next digit in our result. 
Result so far: 5832.95833
If we take 72 away from 80, we end up with 8.
Since there are no more digits in the dividend, we add a zero to the remainder making it 80, and continue the process.

In conclusion, the division gives 5832.95833 with a balance of 8e-06.