We look at the division of 13578556 by 48 
The aim is to understand the frequency of 48 in 13578556.

On to step 1:
1 divided by 48 is 0 with a remainder of 1.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Deduct 0 from 1 and we're left with 1.
Take the next digit (3) from the dividend and append it to 1, then repeat: 13 / 48

Advancing to step 2:
13 divided by 48 is 0 with a remainder of 13.
Write down 0 as next digit of the result. 
Result so far: 0.0
Subtract 0 from 13 to get 13.
Bring next digit (5) of the dividend behind the 13 and repeat the process: 135 / 48

Let's proceed to step 3:
When dividing 135 by 48, we get 2 with a remainder of 39.
Write down 2 as next digit of the result. 
Result so far: 2.0
Subtract 96 from 135 to get 39.
Take the next digit (7) from the dividend and append it to 39, then repeat: 397 / 48

Going ahead to step 4:
The number 48 fits into 397 8 times, leaving a remainder of 13.
Write down 8 as next digit of the result. 
Result so far: 28.0
Deduct 384 from 397 and we're left with 13.
Grab the next digit (8) from the dividend, add it to 13, then carry on: 138 / 48

On to step 5:
If we divide 138 by 48, we get 2 and a remainder of 42.
Record the quotient 2 as the next digit in the result. 
Result so far: 282.0
Subtract 96 from 138 to get 42.
Append the next digit (5) from the dividend to 42 and continue with: 425 / 48

Advancing to step 6:
The number 48 fits into 425 8 times, leaving a remainder of 41.
The next digit of our result is 8. 
Result so far: 2828.0
The remainder is 41 after subtracting 384 from 425.
Fetch the next digit (5) from the dividend, attach it to 41 and continue: 415 / 48

Let's proceed to step 7:
If we divide 415 by 48, we get 8 and a remainder of 31.
The next digit of our result is 8. 
Result so far: 28288.0
If we take 384 away from 415, we end up with 31.
Bring next digit (6) of the dividend behind the 31 and repeat the process: 316 / 48

Going ahead to step 8:
48 can be fit into 316 6 times, resulting in a remainder of 28.
The number 6 becomes the next digit in our result. 
Result so far: 282886.0
If we take 288 away from 316, we end up with 28.
Since there are no more digits in the dividend, we add a zero to the remainder making it 280, and continue the process.

Step 9:
280 divided by 48 is 5 with a remainder of 40.
Use 5 as the next digit of our solution. 
Result so far: 282886.5
Deduct 240 from 280 and we're left with 40.
Since there are no more digits in the dividend, we add a zero to the remainder making it 400, and continue the process.

Step 10:
If we divide 400 by 48, we get 8 and a remainder of 16.
The number 8 becomes the next digit in our result. 
Result so far: 282886.58
Deduct 384 from 400 and we're left with 16.
Since there are no more digits in the dividend, we add a zero to the remainder making it 160, and continue the process.

Moving on to step 11:
The number 48 fits into 160 3 times, leaving a remainder of 16.
The next digit of our result is 3. 
Result so far: 282886.583
Subtracting 144 from 160 leaves us with 16.
Since there are no more digits in the dividend, we add a zero to the remainder making it 160, and continue the process.

Moving on to step 12:
When dividing 160 by 48, we get 3 with a remainder of 16.
Use 3 as the next digit of our solution. 
Result so far: 282886.5833
If we take 144 away from 160, we end up with 16.
Since there are no more digits in the dividend, we add a zero to the remainder making it 160, and continue the process.

The final result is 282886.5833 with a remainder of 0.00016.