12240 ÷ 52 
We want to divide 12240 by 52.

Advancing to step 1:
1 divided by 52 is 0 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.
Take the next digit (2) from the dividend and append it to 1, then repeat: 12 / 52

Advancing to step 2:
12 divided by 52 is 0 with a remainder of 12.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Subtracting 0 from 12 leaves us with 12.
Grab the next digit (2) from the dividend, add it to 12, then carry on: 122 / 52

Step 3:
If we divide 122 by 52, we get 2 and a remainder of 18.
Record the quotient 2 as the next digit in the result. 
Result so far: 2.0
If we take 104 away from 122, we end up with 18.
Fetch the next digit (4) from the dividend, attach it to 18 and continue: 184 / 52

Let's proceed to step 4:
52 can be fit into 184 3 times, resulting in a remainder of 28.
The number 3 becomes the next digit in our result. 
Result so far: 23.0
If we take 156 away from 184, we end up with 28.
Grab the next digit (0) from the dividend, add it to 28, then carry on: 280 / 52

Step 5:
280 divided by 52 is 5 with a remainder of 20.
Record the quotient 5 as the next digit in the result. 
Result so far: 235.0
If we take 260 away from 280, we end up with 20.
Since there are no more digits in the dividend, we add a zero to the remainder making it 200, and continue the process.

Going ahead to step 6:
If we divide 200 by 52, we get 3 and a remainder of 44.
Put 3 as the next digit of the answer. 
Result so far: 235.3
The remainder is 44 after subtracting 156 from 200.
Since there are no more digits in the dividend, we add a zero to the remainder making it 440, and continue the process.

On to step 7:
The number 52 fits into 440 8 times, leaving a remainder of 24.
Use 8 as the next digit of our solution. 
Result so far: 235.38
Subtracting 416 from 440 leaves us with 24.
Since there are no more digits in the dividend, we add a zero to the remainder making it 240, and continue the process.

Advancing to step 8:
If we divide 240 by 52, we get 4 and a remainder of 32.
The number 4 becomes the next digit in our result. 
Result so far: 235.384
The remainder is 32 after subtracting 208 from 240.
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 9:
320 divided by 52 is 6 with a remainder of 8.
The next digit of our result is 6. 
Result so far: 235.3846
Deduct 312 from 320 and we're left with 8.
Since there are no more digits in the dividend, we add a zero to the remainder making it 80, and continue the process.

Moving on to step 10:
80 divided by 52 is 1 with a remainder of 28.
Put 1 as the next digit of the answer. 
Result so far: 235.38461
Deduct 52 from 80 and we're left 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 11:
When dividing 280 by 52, we get 5 with a remainder of 20.
The next digit of our result is 5. 
Result so far: 235.384615
Subtracting 260 from 280 leaves us with 20.
Since there are no more digits in the dividend, we add a zero to the remainder making it 200, and continue the process.

On to step 12:
When dividing 200 by 52, we get 3 with a remainder of 44.
Put 3 as the next digit of the answer. 
Result so far: 235.3846153
Subtract 156 from 200 to get 44.
Since there are no more digits in the dividend, we add a zero to the remainder making it 440, and continue the process.

Moving on to step 13:
The number 52 fits into 440 8 times, leaving a remainder of 24.
Record the quotient 8 as the next digit in the result. 
Result so far: 235.38461538
Deduct 416 from 440 and we're left with 24.
Since there are no more digits in the dividend, we add a zero to the remainder making it 240, and continue the process.

After the division, we end up with 235.38461538 and a remainder of 2.4e-08.