We look at the division of 665491 by 48 
The aim is to understand the frequency of 48 in 665491.

Step 1:
6 divided by 48 is 0 with a remainder of 6.
The next digit of our result is 0. 
Result so far: 0.0
The remainder is 6 after subtracting 0 from 6.
Fetch the next digit (6) from the dividend, attach it to 6 and continue: 66 / 48

On to step 2:
48 goes into 66 1 times with a remainder of 18.
Write down 1 as next digit of the result. 
Result so far: 1.0
The remainder is 18 after subtracting 48 from 66.
Append the next digit (5) from the dividend to 18 and continue with: 185 / 48

Advancing to step 3:
The number 48 fits into 185 3 times, leaving a remainder of 41.
The number 3 becomes the next digit in our result. 
Result so far: 13.0
The remainder is 41 after subtracting 144 from 185.
Fetch the next digit (4) from the dividend, attach it to 41 and continue: 414 / 48

Let's proceed to step 4:
48 goes into 414 8 times with a remainder of 30.
Put 8 as the next digit of the answer. 
Result so far: 138.0
If we subtract 384 from 414, we get 30.
Take the next digit (9) from the dividend and append it to 30, then repeat: 309 / 48

Going ahead to step 5:
When dividing 309 by 48, we get 6 with a remainder of 21.
Use 6 as the next digit of our solution. 
Result so far: 1386.0
Deduct 288 from 309 and we're left with 21.
Include the next digit (1) from the dividend after 21, then repeat: 211 / 48

Moving on to step 6:
If we divide 211 by 48, we get 4 and a remainder of 19.
Record the quotient 4 as the next digit in the result. 
Result so far: 13864.0
Deduct 192 from 211 and we're left with 19.
Since there are no more digits in the dividend, we add a zero to the remainder making it 190, and continue the process.

On to step 7:
48 goes into 190 3 times with a remainder of 46.
The next digit of our result is 3. 
Result so far: 13864.3
Subtracting 144 from 190 leaves us with 46.
Since there are no more digits in the dividend, we add a zero to the remainder making it 460, and continue the process.

On to step 8:
If we divide 460 by 48, we get 9 and a remainder of 28.
Write down 9 as next digit of the result. 
Result so far: 13864.39
Subtract 432 from 460 to get 28.
Since there are no more digits in the dividend, we add a zero to the remainder making it 280, and continue the process.

Going ahead to step 9:
If we divide 280 by 48, we get 5 and a remainder of 40.
The number 5 becomes the next digit in our result. 
Result so far: 13864.395
Subtract 240 from 280 to get 40.
Since there are no more digits in the dividend, we add a zero to the remainder making it 400, and continue the process.

Moving on to step 10:
The number 48 fits into 400 8 times, leaving a remainder of 16.
The next digit of our result is 8. 
Result so far: 13864.3958
The remainder is 16 after subtracting 384 from 400.
Since there are no more digits in the dividend, we add a zero to the remainder making it 160, and continue the process.

Step 11:
The number 48 fits into 160 3 times, leaving a remainder of 16.
Record the quotient 3 as the next digit in the result. 
Result so far: 13864.39583
Deduct 144 from 160 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.

Going ahead to step 12:
If we divide 160 by 48, we get 3 and a remainder of 16.
Record the quotient 3 as the next digit in the result. 
Result so far: 13864.395833
The remainder is 16 after subtracting 144 from 160.
Since there are no more digits in the dividend, we add a zero to the remainder making it 160, and continue the process.

The quotient of the division is 13864.395833, and the remainder is 1.6e-06.