626359 divided by 13 
The aim is to understand the frequency of 13 in 626359.

On to step 1:
13 can be fit into 6 0 times, resulting in a remainder of 6.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Subtract 0 from 6 to get 6.
Include the next digit (2) from the dividend after 6, then repeat: 62 / 13

Advancing to step 2:
When dividing 62 by 13, we get 4 with a remainder of 10.
Put 4 as the next digit of the answer. 
Result so far: 4.0
Subtract 52 from 62 to get 10.
Grab the next digit (6) from the dividend, add it to 10, then carry on: 106 / 13

On to step 3:
If we divide 106 by 13, we get 8 and a remainder of 2.
The next digit of our result is 8. 
Result so far: 48.0
If we take 104 away from 106, we end up with 2.
Append the next digit (3) from the dividend to 2 and continue with: 23 / 13

Moving on to step 4:
23 divided by 13 is 1 with a remainder of 10.
Write down 1 as next digit of the result. 
Result so far: 481.0
Subtract 13 from 23 to get 10.
Take the next digit (5) from the dividend and append it to 10, then repeat: 105 / 13

On to step 5:
When dividing 105 by 13, we get 8 with a remainder of 1.
Put 8 as the next digit of the answer. 
Result so far: 4818.0
If we subtract 104 from 105, we get 1.
Grab the next digit (9) from the dividend, add it to 1, then carry on: 19 / 13

Advancing to step 6:
The number 13 fits into 19 1 times, leaving a remainder of 6.
The number 1 becomes the next digit in our result. 
Result so far: 48181.0
If we subtract 13 from 19, we get 6.
Since there are no more digits in the dividend, we add a zero to the remainder making it 60, and continue the process.

On to step 7:
13 can be fit into 60 4 times, resulting in a remainder of 8.
The next digit of our result is 4. 
Result so far: 48181.4
If we subtract 52 from 60, we 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.

Let's proceed to step 8:
If we divide 80 by 13, we get 6 and a remainder of 2.
Write down 6 as next digit of the result. 
Result so far: 48181.46
The remainder is 2 after subtracting 78 from 80.
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:
13 can be fit into 20 1 times, resulting in a remainder of 7.
The next digit of our result is 1. 
Result so far: 48181.461
Deduct 13 from 20 and we're left with 7.
Since there are no more digits in the dividend, we add a zero to the remainder making it 70, and continue the process.

Moving on to step 10:
13 goes into 70 5 times with a remainder of 5.
Write down 5 as next digit of the result. 
Result so far: 48181.4615
Subtract 65 from 70 to get 5.
Since there are no more digits in the dividend, we add a zero to the remainder making it 50, and continue the process.

Moving on to step 11:
50 divided by 13 is 3 with a remainder of 11.
The number 3 becomes the next digit in our result. 
Result so far: 48181.46153
The remainder is 11 after subtracting 39 from 50.
Since there are no more digits in the dividend, we add a zero to the remainder making it 110, and continue the process.

Moving on to step 12:
If we divide 110 by 13, we get 8 and a remainder of 6.
Put 8 as the next digit of the answer. 
Result so far: 48181.461538
Subtracting 104 from 110 leaves us with 6.
Since there are no more digits in the dividend, we add a zero to the remainder making it 60, and continue the process.

Going ahead to step 13:
If we divide 60 by 13, we get 4 and a remainder of 8.
The next digit of our result is 4. 
Result so far: 48181.4615384
If we subtract 52 from 60, we 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.

On to step 14:
The number 13 fits into 80 6 times, leaving a remainder of 2.
Put 6 as the next digit of the answer. 
Result so far: 48181.46153846
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.

After the division, we end up with 48181.46153846 and a remainder of 2e-09.