332886 divided by 21 
The aim is to understand the frequency of 21 in 332886.

Moving on to step 1:
The number 21 fits into 3 0 times, leaving a remainder of 3.
Write down 0 as next digit of the result. 
Result so far: 0.0
If we take 0 away from 3, we end up with 3.
Grab the next digit (3) from the dividend, add it to 3, then carry on: 33 / 21

Moving on to step 2:
The number 21 fits into 33 1 times, leaving a remainder of 12.
The next digit of our result is 1. 
Result so far: 1.0
If we take 21 away from 33, we end up with 12.
Fetch the next digit (2) from the dividend, attach it to 12 and continue: 122 / 21

Going ahead to step 3:
21 goes into 122 5 times with a remainder of 17.
The next digit of our result is 5. 
Result so far: 15.0
Subtracting 105 from 122 leaves us with 17.
Include the next digit (8) from the dividend after 17, then repeat: 178 / 21

Moving on to step 4:
The number 21 fits into 178 8 times, leaving a remainder of 10.
Record the quotient 8 as the next digit in the result. 
Result so far: 158.0
If we take 168 away from 178, we end up with 10.
Bring next digit (8) of the dividend behind the 10 and repeat the process: 108 / 21

On to step 5:
108 divided by 21 is 5 with a remainder of 3.
Record the quotient 5 as the next digit in the result. 
Result so far: 1585.0
If we subtract 105 from 108, we get 3.
Fetch the next digit (6) from the dividend, attach it to 3 and continue: 36 / 21

Moving on to step 6:
If we divide 36 by 21, we get 1 and a remainder of 15.
The number 1 becomes the next digit in our result. 
Result so far: 15851.0
Subtract 21 from 36 to get 15.
Since there are no more digits in the dividend, we add a zero to the remainder making it 150, and continue the process.

Advancing to step 7:
The number 21 fits into 150 7 times, leaving a remainder of 3.
The number 7 becomes the next digit in our result. 
Result so far: 15851.7
Subtract 147 from 150 to get 3.
Since there are no more digits in the dividend, we add a zero to the remainder making it 30, and continue the process.

Let's proceed to step 8:
The number 21 fits into 30 1 times, leaving a remainder of 9.
The number 1 becomes the next digit in our result. 
Result so far: 15851.71
The remainder is 9 after subtracting 21 from 30.
Since there are no more digits in the dividend, we add a zero to the remainder making it 90, and continue the process.

Let's proceed to step 9:
90 divided by 21 is 4 with a remainder of 6.
The next digit of our result is 4. 
Result so far: 15851.714
The remainder is 6 after subtracting 84 from 90.
Since there are no more digits in the dividend, we add a zero to the remainder making it 60, and continue the process.

Advancing to step 10:
21 goes into 60 2 times with a remainder of 18.
Record the quotient 2 as the next digit in the result. 
Result so far: 15851.7142
If we subtract 42 from 60, we get 18.
Since there are no more digits in the dividend, we add a zero to the remainder making it 180, and continue the process.

Going ahead to step 11:
If we divide 180 by 21, we get 8 and a remainder of 12.
Use 8 as the next digit of our solution. 
Result so far: 15851.71428
If we take 168 away from 180, 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.

Moving on to step 12:
120 divided by 21 is 5 with a remainder of 15.
Record the quotient 5 as the next digit in the result. 
Result so far: 15851.714285
The remainder is 15 after subtracting 105 from 120.
Since there are no more digits in the dividend, we add a zero to the remainder making it 150, and continue the process.

Let's proceed to step 13:
When dividing 150 by 21, we get 7 with a remainder of 3.
Put 7 as the next digit of the answer. 
Result so far: 15851.7142857
The remainder is 3 after subtracting 147 from 150.
Since there are no more digits in the dividend, we add a zero to the remainder making it 30, and continue the process.

Moving on to step 14:
When dividing 30 by 21, we get 1 with a remainder of 9.
Use 1 as the next digit of our solution. 
Result so far: 15851.71428571
If we subtract 21 from 30, we get 9.
Since there are no more digits in the dividend, we add a zero to the remainder making it 90, and continue the process.

In conclusion, the division gives 15851.71428571 with a balance of 9e-09.