We look at the division of 13999427 by 548 
The aim is to understand the frequency of 548 in 13999427.

Step 1:
The number 548 fits into 1 0 times, leaving a remainder of 1.
Write down 0 as next digit of the result. 
Result so far: 0.0
The remainder is 1 after subtracting 0 from 1.
Include the next digit (3) from the dividend after 1, then repeat: 13 / 548

Step 2:
The number 548 fits into 13 0 times, leaving a remainder of 13.
Put 0 as the next digit of the answer. 
Result so far: 0.0
The remainder is 13 after subtracting 0 from 13.
Fetch the next digit (9) from the dividend, attach it to 13 and continue: 139 / 548

Going ahead to step 3:
548 can be fit into 139 0 times, resulting in a remainder of 139.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
The remainder is 139 after subtracting 0 from 139.
Grab the next digit (9) from the dividend, add it to 139, then carry on: 1399 / 548

Step 4:
The number 548 fits into 1399 2 times, leaving a remainder of 303.
The next digit of our result is 2. 
Result so far: 2.0
If we take 1096 away from 1399, we end up with 303.
Include the next digit (9) from the dividend after 303, then repeat: 3039 / 548

Advancing to step 5:
3039 divided by 548 is 5 with a remainder of 299.
Record the quotient 5 as the next digit in the result. 
Result so far: 25.0
If we take 2740 away from 3039, we end up with 299.
Bring next digit (4) of the dividend behind the 299 and repeat the process: 2994 / 548

Let's proceed to step 6:
If we divide 2994 by 548, we get 5 and a remainder of 254.
Use 5 as the next digit of our solution. 
Result so far: 255.0
The remainder is 254 after subtracting 2740 from 2994.
Append the next digit (2) from the dividend to 254 and continue with: 2542 / 548

On to step 7:
2542 divided by 548 is 4 with a remainder of 350.
The next digit of our result is 4. 
Result so far: 2554.0
Subtracting 2192 from 2542 leaves us with 350.
Take the next digit (7) from the dividend and append it to 350, then repeat: 3507 / 548

On to step 8:
3507 divided by 548 is 6 with a remainder of 219.
The next digit of our result is 6. 
Result so far: 25546.0
Deduct 3288 from 3507 and we're left with 219.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2190, and continue the process.

Let's proceed to step 9:
When dividing 2190 by 548, we get 3 with a remainder of 546.
The next digit of our result is 3. 
Result so far: 25546.3
The remainder is 546 after subtracting 1644 from 2190.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5460, and continue the process.

On to step 10:
5460 divided by 548 is 9 with a remainder of 528.
Put 9 as the next digit of the answer. 
Result so far: 25546.39
If we subtract 4932 from 5460, we get 528.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5280, and continue the process.

Let's proceed to step 11:
The number 548 fits into 5280 9 times, leaving a remainder of 348.
Put 9 as the next digit of the answer. 
Result so far: 25546.399
Subtracting 4932 from 5280 leaves us with 348.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3480, and continue the process.

After the division, we end up with 25546.399 and a remainder of 0.0348.