637345 ÷ 13 
The aim is to understand the frequency of 13 in 637345.

Moving 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
If we subtract 0 from 6, we get 6.
Grab the next digit (3) from the dividend, add it to 6, then carry on: 63 / 13

Going ahead to step 2:
13 goes into 63 4 times with a remainder of 11.
Put 4 as the next digit of the answer. 
Result so far: 4.0
If we take 52 away from 63, we end up with 11.
Take the next digit (7) from the dividend and append it to 11, then repeat: 117 / 13

Going ahead to step 3:
The number 13 fits into 117 9 times, leaving a remainder of 0.
Record the quotient 9 as the next digit in the result. 
Result so far: 49.0
Subtracting 117 from 117 leaves us with 0.
Fetch the next digit (3) from the dividend, attach it to 0 and continue: 3 / 13

Step 4:
13 can be fit into 3 0 times, resulting in a remainder of 3.
Put 0 as the next digit of the answer. 
Result so far: 490.0
Subtracting 0 from 3 leaves us with 3.
Grab the next digit (4) from the dividend, add it to 3, then carry on: 34 / 13

Moving on to step 5:
The number 13 fits into 34 2 times, leaving a remainder of 8.
Write down 2 as next digit of the result. 
Result so far: 4902.0
Deduct 26 from 34 and we're left with 8.
Append the next digit (5) from the dividend to 8 and continue with: 85 / 13

Step 6:
If we divide 85 by 13, we get 6 and a remainder of 7.
Record the quotient 6 as the next digit in the result. 
Result so far: 49026.0
Subtract 78 from 85 to get 7.
Since there are no more digits in the dividend, we add a zero to the remainder making it 70, and continue the process.

Step 7:
13 can be fit into 70 5 times, resulting in a remainder of 5.
Use 5 as the next digit of our solution. 
Result so far: 49026.5
Deduct 65 from 70 and we're left 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.

Step 8:
When dividing 50 by 13, we get 3 with a remainder of 11.
Put 3 as the next digit of the answer. 
Result so far: 49026.53
If we take 39 away from 50, we end up with 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 9:
If we divide 110 by 13, we get 8 and a remainder of 6.
The number 8 becomes the next digit in our result. 
Result so far: 49026.538
The remainder is 6 after subtracting 104 from 110.
Since there are no more digits in the dividend, we add a zero to the remainder making it 60, and continue the process.

Let's proceed to step 10:
60 divided by 13 is 4 with a remainder of 8.
The next digit of our result is 4. 
Result so far: 49026.5384
Deduct 52 from 60 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.

Advancing to step 11:
13 can be fit into 80 6 times, resulting in a remainder of 2.
Write down 6 as next digit of the result. 
Result so far: 49026.53846
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.

On to step 12:
When dividing 20 by 13, we get 1 with a remainder of 7.
Put 1 as the next digit of the answer. 
Result so far: 49026.538461
If we subtract 13 from 20, we get 7.
Since there are no more digits in the dividend, we add a zero to the remainder making it 70, and continue the process.

On to step 13:
When dividing 70 by 13, we get 5 with a remainder of 5.
The next digit of our result is 5. 
Result so far: 49026.5384615
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.

Step 14:
13 goes into 50 3 times with a remainder of 11.
Write down 3 as next digit of the result. 
Result so far: 49026.53846153
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.

In conclusion, the division gives 49026.53846153 with a balance of 1.1e-08.