13009591 divided by 626 
The aim is to understand the frequency of 626 in 13009591.

Going ahead to step 1:
626 can be fit into 1 0 times, resulting in a remainder of 1.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Subtract 0 from 1 to get 1.
Grab the next digit (3) from the dividend, add it to 1, then carry on: 13 / 626

Advancing to step 2:
The number 626 fits into 13 0 times, leaving a remainder of 13.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Subtracting 0 from 13 leaves us with 13.
Include the next digit (0) from the dividend after 13, then repeat: 130 / 626

Advancing to step 3:
The number 626 fits into 130 0 times, leaving a remainder of 130.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Subtract 0 from 130 to get 130.
Fetch the next digit (0) from the dividend, attach it to 130 and continue: 1300 / 626

Moving on to step 4:
626 can be fit into 1300 2 times, resulting in a remainder of 48.
Put 2 as the next digit of the answer. 
Result so far: 2.0
If we subtract 1252 from 1300, we get 48.
Fetch the next digit (9) from the dividend, attach it to 48 and continue: 489 / 626

Moving on to step 5:
When dividing 489 by 626, we get 0 with a remainder of 489.
Use 0 as the next digit of our solution. 
Result so far: 20.0
Subtracting 0 from 489 leaves us with 489.
Fetch the next digit (5) from the dividend, attach it to 489 and continue: 4895 / 626

On to step 6:
626 goes into 4895 7 times with a remainder of 513.
Write down 7 as next digit of the result. 
Result so far: 207.0
Subtracting 4382 from 4895 leaves us with 513.
Take the next digit (9) from the dividend and append it to 513, then repeat: 5139 / 626

On to step 7:
5139 divided by 626 is 8 with a remainder of 131.
Put 8 as the next digit of the answer. 
Result so far: 2078.0
Subtracting 5008 from 5139 leaves us with 131.
Grab the next digit (1) from the dividend, add it to 131, then carry on: 1311 / 626

Moving on to step 8:
626 goes into 1311 2 times with a remainder of 59.
Use 2 as the next digit of our solution. 
Result so far: 20782.0
Deduct 1252 from 1311 and we're left with 59.
Since there are no more digits in the dividend, we add a zero to the remainder making it 590, and continue the process.

Moving on to step 9:
The number 626 fits into 590 0 times, leaving a remainder of 590.
Use 0 as the next digit of our solution. 
Result so far: 20782.0
Subtract 0 from 590 to get 590.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5900, and continue the process.

Let's proceed to step 10:
626 goes into 5900 9 times with a remainder of 266.
Put 9 as the next digit of the answer. 
Result so far: 20782.09
Subtracting 5634 from 5900 leaves us with 266.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2660, and continue the process.

Going ahead to step 11:
The number 626 fits into 2660 4 times, leaving a remainder of 156.
Put 4 as the next digit of the answer. 
Result so far: 20782.094
Deduct 2504 from 2660 and we're left with 156.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1560, and continue the process.

On to step 12:
The number 626 fits into 1560 2 times, leaving a remainder of 308.
Write down 2 as next digit of the result. 
Result so far: 20782.0942
Deduct 1252 from 1560 and we're left with 308.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3080, and continue the process.

Moving on to step 13:
The number 626 fits into 3080 4 times, leaving a remainder of 576.
Use 4 as the next digit of our solution. 
Result so far: 20782.09424
Deduct 2504 from 3080 and we're left with 576.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5760, and continue the process.

Let's proceed to step 14:
The number 626 fits into 5760 9 times, leaving a remainder of 126.
Record the quotient 9 as the next digit in the result. 
Result so far: 20782.094249
Subtract 5634 from 5760 to get 126.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1260, and continue the process.

Step 15:
When dividing 1260 by 626, we get 2 with a remainder of 8.
Put 2 as the next digit of the answer. 
Result so far: 20782.0942492
Subtract 1252 from 1260 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.

Advancing to step 16:
The number 626 fits into 80 0 times, leaving a remainder of 80.
Record the quotient 0 as the next digit in the result. 
Result so far: 20782.0942492
Subtracting 0 from 80 leaves us with 80.
Since there are no more digits in the dividend, we add a zero to the remainder making it 800, and continue the process.

After the division, we end up with 20782.0942492 and a remainder of 8e-08.