We look at the division of 923221 by 48 
The aim is to understand the frequency of 48 in 923221.

Step 1:
9 divided by 48 is 0 with a remainder of 9.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Subtracting 0 from 9 leaves us with 9.
Bring next digit (2) of the dividend behind the 9 and repeat the process: 92 / 48

Let's proceed to step 2:
48 goes into 92 1 times with a remainder of 44.
Put 1 as the next digit of the answer. 
Result so far: 1.0
The remainder is 44 after subtracting 48 from 92.
Fetch the next digit (3) from the dividend, attach it to 44 and continue: 443 / 48

Step 3:
When dividing 443 by 48, we get 9 with a remainder of 11.
Put 9 as the next digit of the answer. 
Result so far: 19.0
The remainder is 11 after subtracting 432 from 443.
Fetch the next digit (2) from the dividend, attach it to 11 and continue: 112 / 48

Let's proceed to step 4:
112 divided by 48 is 2 with a remainder of 16.
Put 2 as the next digit of the answer. 
Result so far: 192.0
If we subtract 96 from 112, we get 16.
Fetch the next digit (2) from the dividend, attach it to 16 and continue: 162 / 48

On to step 5:
If we divide 162 by 48, we get 3 and a remainder of 18.
Put 3 as the next digit of the answer. 
Result so far: 1923.0
Subtract 144 from 162 to get 18.
Include the next digit (1) from the dividend after 18, then repeat: 181 / 48

Let's proceed to step 6:
The number 48 fits into 181 3 times, leaving a remainder of 37.
Write down 3 as next digit of the result. 
Result so far: 19233.0
If we take 144 away from 181, we end up with 37.
Since there are no more digits in the dividend, we add a zero to the remainder making it 370, and continue the process.

Let's proceed to step 7:
When dividing 370 by 48, we get 7 with a remainder of 34.
Record the quotient 7 as the next digit in the result. 
Result so far: 19233.7
Deduct 336 from 370 and we're left with 34.
Since there are no more digits in the dividend, we add a zero to the remainder making it 340, and continue the process.

Let's proceed to step 8:
340 divided by 48 is 7 with a remainder of 4.
Use 7 as the next digit of our solution. 
Result so far: 19233.77
If we subtract 336 from 340, we get 4.
Since there are no more digits in the dividend, we add a zero to the remainder making it 40, and continue the process.

Our division results in 19233.77 with a remaining 0.004.