We look at the division of 253039 by 12 
Our goal is to divide 253039 by 12.

Going ahead to step 1:
The number 12 fits into 2 0 times, leaving a remainder of 2.
Use 0 as the next digit of our solution. 
Result so far: 0.0
The remainder is 2 after subtracting 0 from 2.
Bring next digit (5) of the dividend behind the 2 and repeat the process: 25 / 12

Going ahead to step 2:
If we divide 25 by 12, we get 2 and a remainder of 1.
Write down 2 as next digit of the result. 
Result so far: 2.0
Subtracting 24 from 25 leaves us with 1.
Take the next digit (3) from the dividend and append it to 1, then repeat: 13 / 12

Moving on to step 3:
When dividing 13 by 12, we get 1 with a remainder of 1.
Write down 1 as next digit of the result. 
Result so far: 21.0
Subtracting 12 from 13 leaves us with 1.
Grab the next digit (0) from the dividend, add it to 1, then carry on: 10 / 12

On to step 4:
12 goes into 10 0 times with a remainder of 10.
The next digit of our result is 0. 
Result so far: 210.0
The remainder is 10 after subtracting 0 from 10.
Take the next digit (3) from the dividend and append it to 10, then repeat: 103 / 12

Let's proceed to step 5:
When dividing 103 by 12, we get 8 with a remainder of 7.
The next digit of our result is 8. 
Result so far: 2108.0
The remainder is 7 after subtracting 96 from 103.
Bring next digit (9) of the dividend behind the 7 and repeat the process: 79 / 12

Moving on to step 6:
When dividing 79 by 12, we get 6 with a remainder of 7.
The next digit of our result is 6. 
Result so far: 21086.0
Subtracting 72 from 79 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.

Let's proceed to step 7:
When dividing 70 by 12, we get 5 with a remainder of 10.
The number 5 becomes the next digit in our result. 
Result so far: 21086.5
Subtracting 60 from 70 leaves us 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 8:
When dividing 100 by 12, we get 8 with a remainder of 4.
Record the quotient 8 as the next digit in the result. 
Result so far: 21086.58
Subtract 96 from 100 to get 4.
Since there are no more digits in the dividend, we add a zero to the remainder making it 40, and continue the process.

Step 9:
12 goes into 40 3 times with a remainder of 4.
Use 3 as the next digit of our solution. 
Result so far: 21086.583
If we take 36 away from 40, we end up 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.

Advancing to step 10:
12 can be fit into 40 3 times, resulting in a remainder of 4.
Write down 3 as next digit of the result. 
Result so far: 21086.5833
The remainder is 4 after subtracting 36 from 40.
Since there are no more digits in the dividend, we add a zero to the remainder making it 40, and continue the process.

Our division results in 21086.5833 with a remaining 4e-05.