124520 ÷ 39 
We're looking to find how many times 39 goes into 124520.

Moving on to step 1:
39 goes into 1 0 times with a remainder of 1.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
The remainder is 1 after subtracting 0 from 1.
Include the next digit (2) from the dividend after 1, then repeat: 12 / 39

Moving on to step 2:
If we divide 12 by 39, we get 0 and a remainder of 12.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
The remainder is 12 after subtracting 0 from 12.
Grab the next digit (4) from the dividend, add it to 12, then carry on: 124 / 39

Advancing to step 3:
The number 39 fits into 124 3 times, leaving a remainder of 7.
Record the quotient 3 as the next digit in the result. 
Result so far: 3.0
Subtracting 117 from 124 leaves us with 7.
Append the next digit (5) from the dividend to 7 and continue with: 75 / 39

Step 4:
39 can be fit into 75 1 times, resulting in a remainder of 36.
Write down 1 as next digit of the result. 
Result so far: 31.0
If we take 39 away from 75, we end up with 36.
Grab the next digit (2) from the dividend, add it to 36, then carry on: 362 / 39

Going ahead to step 5:
39 goes into 362 9 times with a remainder of 11.
The next digit of our result is 9. 
Result so far: 319.0
If we take 351 away from 362, we end up with 11.
Fetch the next digit (0) from the dividend, attach it to 11 and continue: 110 / 39

On to step 6:
39 can be fit into 110 2 times, resulting in a remainder of 32.
Use 2 as the next digit of our solution. 
Result so far: 3192.0
If we subtract 78 from 110, we get 32.
Since there are no more digits in the dividend, we add a zero to the remainder making it 320, and continue the process.

Advancing to step 7:
39 goes into 320 8 times with a remainder of 8.
Record the quotient 8 as the next digit in the result. 
Result so far: 3192.8
The remainder is 8 after subtracting 312 from 320.
Since there are no more digits in the dividend, we add a zero to the remainder making it 80, and continue the process.

Let's proceed to step 8:
39 goes into 80 2 times with a remainder of 2.
Record the quotient 2 as the next digit in the result. 
Result so far: 3192.82
If we subtract 78 from 80, 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.

On to step 9:
If we divide 20 by 39, we get 0 and a remainder of 20.
Put 0 as the next digit of the answer. 
Result so far: 3192.82
Subtract 0 from 20 to get 20.
Since there are no more digits in the dividend, we add a zero to the remainder making it 200, and continue the process.

Moving on to step 10:
39 goes into 200 5 times with a remainder of 5.
The next digit of our result is 5. 
Result so far: 3192.8205
Subtracting 195 from 200 leaves us with 5.
Since there are no more digits in the dividend, we add a zero to the remainder making it 50, and continue the process.

On to step 11:
39 can be fit into 50 1 times, resulting in a remainder of 11.
Put 1 as the next digit of the answer. 
Result so far: 3192.82051
If we subtract 39 from 50, we 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.

On to step 12:
If we divide 110 by 39, we get 2 and a remainder of 32.
The next digit of our result is 2. 
Result so far: 3192.820512
Subtracting 78 from 110 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.

Going ahead to step 13:
39 can be fit into 320 8 times, resulting in a remainder of 8.
Write down 8 as next digit of the result. 
Result so far: 3192.8205128
The remainder is 8 after subtracting 312 from 320.
Since there are no more digits in the dividend, we add a zero to the remainder making it 80, and continue the process.

Step 14:
If we divide 80 by 39, we get 2 and a remainder of 2.
The number 2 becomes the next digit in our result. 
Result so far: 3192.82051282
If we take 78 away from 80, we end up with 2.
Since there are no more digits in the dividend, we add a zero to the remainder making it 20, and continue the process.

In conclusion, the division gives 3192.82051282 with a balance of 2e-09.