We look at the division of 638559 by 48 
The aim is to understand the frequency of 48 in 638559.

On to step 1:
48 can be fit into 6 0 times, resulting in a remainder of 6.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Deduct 0 from 6 and we're left with 6.
Grab the next digit (3) from the dividend, add it to 6, then carry on: 63 / 48

Step 2:
When dividing 63 by 48, we get 1 with a remainder of 15.
The next digit of our result is 1. 
Result so far: 1.0
If we subtract 48 from 63, we get 15.
Grab the next digit (8) from the dividend, add it to 15, then carry on: 158 / 48

On to step 3:
48 goes into 158 3 times with a remainder of 14.
Write down 3 as next digit of the result. 
Result so far: 13.0
If we take 144 away from 158, we end up with 14.
Bring next digit (5) of the dividend behind the 14 and repeat the process: 145 / 48

Step 4:
If we divide 145 by 48, we get 3 and a remainder of 1.
Record the quotient 3 as the next digit in the result. 
Result so far: 133.0
Subtract 144 from 145 to get 1.
Grab the next digit (5) from the dividend, add it to 1, then carry on: 15 / 48

Moving on to step 5:
15 divided by 48 is 0 with a remainder of 15.
Write down 0 as next digit of the result. 
Result so far: 1330.0
Subtract 0 from 15 to get 15.
Include the next digit (9) from the dividend after 15, then repeat: 159 / 48

On to step 6:
48 can be fit into 159 3 times, resulting in a remainder of 15.
Use 3 as the next digit of our solution. 
Result so far: 13303.0
Subtracting 144 from 159 leaves us with 15.
Since there are no more digits in the dividend, we add a zero to the remainder making it 150, and continue the process.

On to step 7:
150 divided by 48 is 3 with a remainder of 6.
The next digit of our result is 3. 
Result so far: 13303.3
Subtract 144 from 150 to 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.

Going ahead to step 8:
60 divided by 48 is 1 with a remainder of 12.
Record the quotient 1 as the next digit in the result. 
Result so far: 13303.31
If we take 48 away from 60, we end up with 12.
Since there are no more digits in the dividend, we add a zero to the remainder making it 120, and continue the process.

Going ahead to step 9:
The number 48 fits into 120 2 times, leaving a remainder of 24.
Put 2 as the next digit of the answer. 
Result so far: 13303.312
The remainder is 24 after subtracting 96 from 120.
Since there are no more digits in the dividend, we add a zero to the remainder making it 240, and continue the process.

Let's proceed to step 10:
48 can be fit into 240 5 times, resulting in a remainder of 0.
The number 5 becomes the next digit in our result. 
Result so far: 13303.3125
If we take 240 away from 240, we end up with 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

Going ahead to step 11:
48 goes into 0 0 times with a remainder of 0.
The next digit of our result is 0. 
Result so far: 13303.3125
The remainder is 0 after subtracting 0 from 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

Moving on to step 12:
If we divide 0 by 48, we get 0 and a remainder of 0.
Record the quotient 0 as the next digit in the result. 
Result so far: 13303.3125
Subtracting 0 from 0 leaves us with 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

Our division results in 13303.3125 with a remaining 0.0.