126237 divided by 9 
Our goal is to divide 126237 by 9.

On to step 1:
If we divide 1 by 9, we get 0 and a remainder of 1.
The next digit of our result is 0. 
Result so far: 0.0
If we take 0 away from 1, we end up with 1.
Grab the next digit (2) from the dividend, add it to 1, then carry on: 12 / 9

Let's proceed to step 2:
The number 9 fits into 12 1 times, leaving a remainder of 3.
Write down 1 as next digit of the result. 
Result so far: 1.0
If we subtract 9 from 12, we get 3.
Take the next digit (6) from the dividend and append it to 3, then repeat: 36 / 9

Going ahead to step 3:
9 can be fit into 36 4 times, resulting in a remainder of 0.
The number 4 becomes the next digit in our result. 
Result so far: 14.0
If we subtract 36 from 36, we get 0.
Include the next digit (2) from the dividend after 0, then repeat: 2 / 9

On to step 4:
The number 9 fits into 2 0 times, leaving a remainder of 2.
Use 0 as the next digit of our solution. 
Result so far: 140.0
Subtracting 0 from 2 leaves us with 2.
Append the next digit (3) from the dividend to 2 and continue with: 23 / 9

On to step 5:
If we divide 23 by 9, we get 2 and a remainder of 5.
Write down 2 as next digit of the result. 
Result so far: 1402.0
If we subtract 18 from 23, we get 5.
Fetch the next digit (7) from the dividend, attach it to 5 and continue: 57 / 9

Going ahead to step 6:
The number 9 fits into 57 6 times, leaving a remainder of 3.
The next digit of our result is 6. 
Result so far: 14026.0
If we take 54 away from 57, we end up with 3.
Since there are no more digits in the dividend, we add a zero to the remainder making it 30, and continue the process.

Step 7:
When dividing 30 by 9, we get 3 with a remainder of 3.
Write down 3 as next digit of the result. 
Result so far: 14026.3
The remainder is 3 after subtracting 27 from 30.
Since there are no more digits in the dividend, we add a zero to the remainder making it 30, and continue the process.

Advancing to step 8:
When dividing 30 by 9, we get 3 with a remainder of 3.
Use 3 as the next digit of our solution. 
Result so far: 14026.33
Deduct 27 from 30 and we're left with 3.
Since there are no more digits in the dividend, we add a zero to the remainder making it 30, and continue the process.

The final outcome is 14026.33, with a leftover of 0.003.