12790538 divided by 637 
The aim is to understand the frequency of 637 in 12790538.

Moving on to step 1:
637 goes into 1 0 times with a remainder of 1.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Deduct 0 from 1 and we're left with 1.
Append the next digit (2) from the dividend to 1 and continue with: 12 / 637

Advancing to step 2:
If we divide 12 by 637, we get 0 and 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 (7) from the dividend, add it to 12, then carry on: 127 / 637

Moving on to step 3:
If we divide 127 by 637, we get 0 and a remainder of 127.
Write down 0 as next digit of the result. 
Result so far: 0.0
Subtracting 0 from 127 leaves us with 127.
Include the next digit (9) from the dividend after 127, then repeat: 1279 / 637

Moving on to step 4:
1279 divided by 637 is 2 with a remainder of 5.
Use 2 as the next digit of our solution. 
Result so far: 2.0
Deduct 1274 from 1279 and we're left with 5.
Append the next digit (0) from the dividend to 5 and continue with: 50 / 637

Advancing to step 5:
637 can be fit into 50 0 times, resulting in a remainder of 50.
Use 0 as the next digit of our solution. 
Result so far: 20.0
If we subtract 0 from 50, we get 50.
Fetch the next digit (5) from the dividend, attach it to 50 and continue: 505 / 637

On to step 6:
637 goes into 505 0 times with a remainder of 505.
Write down 0 as next digit of the result. 
Result so far: 200.0
Subtract 0 from 505 to get 505.
Append the next digit (3) from the dividend to 505 and continue with: 5053 / 637

Going ahead to step 7:
If we divide 5053 by 637, we get 7 and a remainder of 594.
The number 7 becomes the next digit in our result. 
Result so far: 2007.0
Deduct 4459 from 5053 and we're left with 594.
Append the next digit (8) from the dividend to 594 and continue with: 5948 / 637

Going ahead to step 8:
637 goes into 5948 9 times with a remainder of 215.
Use 9 as the next digit of our solution. 
Result so far: 20079.0
Subtract 5733 from 5948 to get 215.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2150, and continue the process.

Going ahead to step 9:
The number 637 fits into 2150 3 times, leaving a remainder of 239.
The next digit of our result is 3. 
Result so far: 20079.3
Subtracting 1911 from 2150 leaves us with 239.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2390, and continue the process.

Step 10:
The number 637 fits into 2390 3 times, leaving a remainder of 479.
Record the quotient 3 as the next digit in the result. 
Result so far: 20079.33
The remainder is 479 after subtracting 1911 from 2390.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4790, and continue the process.

The final result is 20079.33 with a remainder of 0.479.