Let's divide 332492 by 21
The aim is to understand the frequency of 21 in 332492.

On to step 1:
21 goes into 3 0 times with a remainder of 3.
Put 0 as the next digit of the answer. 
Result so far: 0.0
The remainder is 3 after subtracting 0 from 3.
Bring next digit (3) of the dividend behind the 3 and repeat the process: 33 / 21

On to step 2:
The number 21 fits into 33 1 times, leaving a remainder of 12.
Put 1 as the next digit of the answer. 
Result so far: 1.0
The remainder is 12 after subtracting 21 from 33.
Append the next digit (2) from the dividend to 12 and continue with: 122 / 21

Let's proceed to step 3:
122 divided by 21 is 5 with a remainder of 17.
Write down 5 as next digit of the result. 
Result so far: 15.0
The remainder is 17 after subtracting 105 from 122.
Grab the next digit (4) from the dividend, add it to 17, then carry on: 174 / 21

Step 4:
174 divided by 21 is 8 with a remainder of 6.
Use 8 as the next digit of our solution. 
Result so far: 158.0
The remainder is 6 after subtracting 168 from 174.
Fetch the next digit (9) from the dividend, attach it to 6 and continue: 69 / 21

On to step 5:
When dividing 69 by 21, we get 3 with a remainder of 6.
Record the quotient 3 as the next digit in the result. 
Result so far: 1583.0
If we subtract 63 from 69, we get 6.
Append the next digit (2) from the dividend to 6 and continue with: 62 / 21

Going ahead to step 6:
The number 21 fits into 62 2 times, leaving a remainder of 20.
Put 2 as the next digit of the answer. 
Result so far: 15832.0
The remainder is 20 after subtracting 42 from 62.
Since there are no more digits in the dividend, we add a zero to the remainder making it 200, and continue the process.

Let's proceed to step 7:
200 divided by 21 is 9 with a remainder of 11.
Record the quotient 9 as the next digit in the result. 
Result so far: 15832.9
Subtracting 189 from 200 leaves us with 11.
Since there are no more digits in the dividend, we add a zero to the remainder making it 110, and continue the process.

Let's proceed to step 8:
The number 21 fits into 110 5 times, leaving a remainder of 5.
The next digit of our result is 5. 
Result so far: 15832.95
If we subtract 105 from 110, we get 5.
Since there are no more digits in the dividend, we add a zero to the remainder making it 50, and continue the process.

Let's proceed to step 9:
When dividing 50 by 21, we get 2 with a remainder of 8.
Record the quotient 2 as the next digit in the result. 
Result so far: 15832.952
If we subtract 42 from 50, we get 8.
Since there are no more digits in the dividend, we add a zero to the remainder making it 80, and continue the process.

Advancing to step 10:
If we divide 80 by 21, we get 3 and a remainder of 17.
Put 3 as the next digit of the answer. 
Result so far: 15832.9523
Subtracting 63 from 80 leaves us with 17.
Since there are no more digits in the dividend, we add a zero to the remainder making it 170, and continue the process.

Going ahead to step 11:
If we divide 170 by 21, we get 8 and a remainder of 2.
Write down 8 as next digit of the result. 
Result so far: 15832.95238
If we subtract 168 from 170, we get 2.
Since there are no more digits in the dividend, we add a zero to the remainder making it 20, and continue the process.

Let's proceed to step 12:
21 goes into 20 0 times with a remainder of 20.
Use 0 as the next digit of our solution. 
Result so far: 15832.95238
Deduct 0 from 20 and we're left with 20.
Since there are no more digits in the dividend, we add a zero to the remainder making it 200, and continue the process.

On to step 13:
200 divided by 21 is 9 with a remainder of 11.
Use 9 as the next digit of our solution. 
Result so far: 15832.9523809
Subtracting 189 from 200 leaves us with 11.
Since there are no more digits in the dividend, we add a zero to the remainder making it 110, and continue the process.

Step 14:
The number 21 fits into 110 5 times, leaving a remainder of 5.
The number 5 becomes the next digit in our result. 
Result so far: 15832.95238095
Subtract 105 from 110 to get 5.
Since there are no more digits in the dividend, we add a zero to the remainder making it 50, and continue the process.

In conclusion, the division gives 15832.95238095 with a balance of 5e-09.