Let's divide 12490436 by 124
We want to divide 12490436 by 124.

Moving on to step 1:
When dividing 1 by 124, we get 0 with a remainder of 1.
The next digit of our result is 0. 
Result so far: 0.0
Subtract 0 from 1 to get 1.
Append the next digit (2) from the dividend to 1 and continue with: 12 / 124

Moving on to step 2:
The number 124 fits into 12 0 times, leaving a remainder of 12.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Subtracting 0 from 12 leaves us with 12.
Append the next digit (4) from the dividend to 12 and continue with: 124 / 124

Going ahead to step 3:
124 can be fit into 124 1 times, resulting in a remainder of 0.
Write down 1 as next digit of the result. 
Result so far: 1.0
The remainder is 0 after subtracting 124 from 124.
Grab the next digit (9) from the dividend, add it to 0, then carry on: 9 / 124

Advancing to step 4:
124 goes into 9 0 times with a remainder of 9.
Use 0 as the next digit of our solution. 
Result so far: 10.0
Subtract 0 from 9 to get 9.
Grab the next digit (0) from the dividend, add it to 9, then carry on: 90 / 124

On to step 5:
124 can be fit into 90 0 times, resulting in a remainder of 90.
The number 0 becomes the next digit in our result. 
Result so far: 100.0
Subtract 0 from 90 to get 90.
Fetch the next digit (4) from the dividend, attach it to 90 and continue: 904 / 124

Moving on to step 6:
124 goes into 904 7 times with a remainder of 36.
Record the quotient 7 as the next digit in the result. 
Result so far: 1007.0
If we subtract 868 from 904, we get 36.
Grab the next digit (3) from the dividend, add it to 36, then carry on: 363 / 124

Going ahead to step 7:
124 goes into 363 2 times with a remainder of 115.
Write down 2 as next digit of the result. 
Result so far: 10072.0
Subtracting 248 from 363 leaves us with 115.
Grab the next digit (6) from the dividend, add it to 115, then carry on: 1156 / 124

Moving on to step 8:
When dividing 1156 by 124, we get 9 with a remainder of 40.
Use 9 as the next digit of our solution. 
Result so far: 100729.0
Deduct 1116 from 1156 and we're left with 40.
Since there are no more digits in the dividend, we add a zero to the remainder making it 400, and continue the process.

Let's proceed to step 9:
When dividing 400 by 124, we get 3 with a remainder of 28.
Use 3 as the next digit of our solution. 
Result so far: 100729.3
If we take 372 away from 400, we end up with 28.
Since there are no more digits in the dividend, we add a zero to the remainder making it 280, and continue the process.

Step 10:
The number 124 fits into 280 2 times, leaving a remainder of 32.
Write down 2 as next digit of the result. 
Result so far: 100729.32
Subtracting 248 from 280 leaves us with 32.
Since there are no more digits in the dividend, we add a zero to the remainder making it 320, and continue the process.

Let's proceed to step 11:
124 can be fit into 320 2 times, resulting in a remainder of 72.
Use 2 as the next digit of our solution. 
Result so far: 100729.322
If we take 248 away from 320, we end up with 72.
Since there are no more digits in the dividend, we add a zero to the remainder making it 720, and continue the process.

After the division, we end up with 100729.322 and a remainder of 0.0072.