12634247 divided by 520 
Our goal is to divide 12634247 by 520.

Step 1:
520 goes into 1 0 times with a remainder of 1.
Write down 0 as next digit of the result. 
Result so far: 0.0
Deduct 0 from 1 and we're left with 1.
Fetch the next digit (2) from the dividend, attach it to 1 and continue: 12 / 520

On to step 2:
When dividing 12 by 520, we get 0 with a remainder of 12.
Use 0 as the next digit of our solution. 
Result so far: 0.0
If we take 0 away from 12, we end up with 12.
Take the next digit (6) from the dividend and append it to 12, then repeat: 126 / 520

Step 3:
126 divided by 520 is 0 with a remainder of 126.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Deduct 0 from 126 and we're left with 126.
Bring next digit (3) of the dividend behind the 126 and repeat the process: 1263 / 520

Let's proceed to step 4:
520 goes into 1263 2 times with a remainder of 223.
Write down 2 as next digit of the result. 
Result so far: 2.0
The remainder is 223 after subtracting 1040 from 1263.
Include the next digit (4) from the dividend after 223, then repeat: 2234 / 520

On to step 5:
If we divide 2234 by 520, we get 4 and a remainder of 154.
Write down 4 as next digit of the result. 
Result so far: 24.0
Deduct 2080 from 2234 and we're left with 154.
Grab the next digit (2) from the dividend, add it to 154, then carry on: 1542 / 520

Advancing to step 6:
1542 divided by 520 is 2 with a remainder of 502.
Use 2 as the next digit of our solution. 
Result so far: 242.0
Subtracting 1040 from 1542 leaves us with 502.
Fetch the next digit (4) from the dividend, attach it to 502 and continue: 5024 / 520

Step 7:
When dividing 5024 by 520, we get 9 with a remainder of 344.
The number 9 becomes the next digit in our result. 
Result so far: 2429.0
If we take 4680 away from 5024, we end up with 344.
Append the next digit (7) from the dividend to 344 and continue with: 3447 / 520

Moving on to step 8:
If we divide 3447 by 520, we get 6 and a remainder of 327.
The number 6 becomes the next digit in our result. 
Result so far: 24296.0
Deduct 3120 from 3447 and we're left with 327.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3270, and continue the process.

Step 9:
The number 520 fits into 3270 6 times, leaving a remainder of 150.
Use 6 as the next digit of our solution. 
Result so far: 24296.6
Subtract 3120 from 3270 to get 150.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1500, and continue the process.

Going ahead to step 10:
When dividing 1500 by 520, we get 2 with a remainder of 460.
The number 2 becomes the next digit in our result. 
Result so far: 24296.62
Subtracting 1040 from 1500 leaves us with 460.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4600, and continue the process.

Let's proceed to step 11:
The number 520 fits into 4600 8 times, leaving a remainder of 440.
Record the quotient 8 as the next digit in the result. 
Result so far: 24296.628
Deduct 4160 from 4600 and we're left with 440.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4400, and continue the process.

On to step 12:
When dividing 4400 by 520, we get 8 with a remainder of 240.
Record the quotient 8 as the next digit in the result. 
Result so far: 24296.6288
If we take 4160 away from 4400, we end up with 240.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2400, and continue the process.

After the division, we end up with 24296.6288 and a remainder of 0.0024.