124403 ÷ 12 
We're looking to find how many times 12 goes into 124403.

On to step 1:
If we divide 1 by 12, we get 0 and a remainder of 1.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Deduct 0 from 1 and we're left with 1.
Take the next digit (2) from the dividend and append it to 1, then repeat: 12 / 12

Step 2:
If we divide 12 by 12, we get 1 and a remainder of 0.
Put 1 as the next digit of the answer. 
Result so far: 1.0
Subtract 12 from 12 to get 0.
Grab the next digit (4) from the dividend, add it to 0, then carry on: 4 / 12

Step 3:
12 goes into 4 0 times with a remainder of 4.
Use 0 as the next digit of our solution. 
Result so far: 10.0
Deduct 0 from 4 and we're left with 4.
Grab the next digit (4) from the dividend, add it to 4, then carry on: 44 / 12

On to step 4:
If we divide 44 by 12, we get 3 and a remainder of 8.
Record the quotient 3 as the next digit in the result. 
Result so far: 103.0
Subtract 36 from 44 to get 8.
Include the next digit (0) from the dividend after 8, then repeat: 80 / 12

Let's proceed to step 5:
If we divide 80 by 12, we get 6 and a remainder of 8.
Record the quotient 6 as the next digit in the result. 
Result so far: 1036.0
If we take 72 away from 80, we end up with 8.
Fetch the next digit (3) from the dividend, attach it to 8 and continue: 83 / 12

Advancing to step 6:
When dividing 83 by 12, we get 6 with a remainder of 11.
The next digit of our result is 6. 
Result so far: 10366.0
Subtract 72 from 83 to get 11.
Since there are no more digits in the dividend, we add a zero to the remainder making it 110, and continue the process.

Let's proceed to step 7:
110 divided by 12 is 9 with a remainder of 2.
Use 9 as the next digit of our solution. 
Result so far: 10366.9
If we subtract 108 from 110, we get 2.
Since there are no more digits in the dividend, we add a zero to the remainder making it 20, and continue the process.

Advancing to step 8:
The number 12 fits into 20 1 times, leaving a remainder of 8.
Put 1 as the next digit of the answer. 
Result so far: 10366.91
The remainder is 8 after subtracting 12 from 20.
Since there are no more digits in the dividend, we add a zero to the remainder making it 80, and continue the process.

Going ahead to step 9:
12 can be fit into 80 6 times, resulting in a remainder of 8.
Put 6 as the next digit of the answer. 
Result so far: 10366.916
Subtract 72 from 80 to get 8.
Since there are no more digits in the dividend, we add a zero to the remainder making it 80, and continue the process.

Going ahead to step 10:
The number 12 fits into 80 6 times, leaving a remainder of 8.
Write down 6 as next digit of the result. 
Result so far: 10366.9166
If we subtract 72 from 80, we get 8.
Since there are no more digits in the dividend, we add a zero to the remainder making it 80, and continue the process.

The final result is 10366.9166 with a remainder of 8e-05.