We look at the division of 63968213 by 330 
The aim is to understand the frequency of 330 in 63968213.

On to step 1:
6 divided by 330 is 0 with a remainder of 6.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
If we subtract 0 from 6, we get 6.
Append the next digit (3) from the dividend to 6 and continue with: 63 / 330

Advancing to step 2:
The number 330 fits into 63 0 times, leaving a remainder of 63.
Write down 0 as next digit of the result. 
Result so far: 0.0
Deduct 0 from 63 and we're left with 63.
Bring next digit (9) of the dividend behind the 63 and repeat the process: 639 / 330

Advancing to step 3:
The number 330 fits into 639 1 times, leaving a remainder of 309.
Write down 1 as next digit of the result. 
Result so far: 1.0
Subtract 330 from 639 to get 309.
Fetch the next digit (6) from the dividend, attach it to 309 and continue: 3096 / 330

Moving on to step 4:
The number 330 fits into 3096 9 times, leaving a remainder of 126.
Put 9 as the next digit of the answer. 
Result so far: 19.0
Deduct 2970 from 3096 and we're left with 126.
Grab the next digit (8) from the dividend, add it to 126, then carry on: 1268 / 330

Advancing to step 5:
The number 330 fits into 1268 3 times, leaving a remainder of 278.
The next digit of our result is 3. 
Result so far: 193.0
Subtract 990 from 1268 to get 278.
Take the next digit (2) from the dividend and append it to 278, then repeat: 2782 / 330

Moving on to step 6:
When dividing 2782 by 330, we get 8 with a remainder of 142.
The number 8 becomes the next digit in our result. 
Result so far: 1938.0
Subtract 2640 from 2782 to get 142.
Grab the next digit (1) from the dividend, add it to 142, then carry on: 1421 / 330

Let's proceed to step 7:
If we divide 1421 by 330, we get 4 and a remainder of 101.
Record the quotient 4 as the next digit in the result. 
Result so far: 19384.0
Subtract 1320 from 1421 to get 101.
Append the next digit (3) from the dividend to 101 and continue with: 1013 / 330

On to step 8:
If we divide 1013 by 330, we get 3 and a remainder of 23.
Use 3 as the next digit of our solution. 
Result so far: 193843.0
If we subtract 990 from 1013, we get 23.
Since there are no more digits in the dividend, we add a zero to the remainder making it 230, and continue the process.

Going ahead to step 9:
When dividing 230 by 330, we get 0 with a remainder of 230.
The next digit of our result is 0. 
Result so far: 193843.0
If we subtract 0 from 230, we get 230.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2300, and continue the process.

On to step 10:
330 can be fit into 2300 6 times, resulting in a remainder of 320.
Record the quotient 6 as the next digit in the result. 
Result so far: 193843.06
Subtracting 1980 from 2300 leaves us with 320.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3200, and continue the process.

Moving on to step 11:
The number 330 fits into 3200 9 times, leaving a remainder of 230.
The next digit of our result is 9. 
Result so far: 193843.069
Subtracting 2970 from 3200 leaves us with 230.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2300, and continue the process.

Going ahead to step 12:
330 can be fit into 2300 6 times, resulting in a remainder of 320.
The number 6 becomes the next digit in our result. 
Result so far: 193843.0696
Subtracting 1980 from 2300 leaves us with 320.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3200, and continue the process.

Let's proceed to step 13:
330 can be fit into 3200 9 times, resulting in a remainder of 230.
The next digit of our result is 9. 
Result so far: 193843.06969
Subtracting 2970 from 3200 leaves us with 230.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2300, and continue the process.

Let's proceed to step 14:
If we divide 2300 by 330, we get 6 and a remainder of 320.
Use 6 as the next digit of our solution. 
Result so far: 193843.069696
Subtracting 1980 from 2300 leaves us with 320.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3200, and continue the process.

On to step 15:
330 can be fit into 3200 9 times, resulting in a remainder of 230.
The number 9 becomes the next digit in our result. 
Result so far: 193843.0696969
The remainder is 230 after subtracting 2970 from 3200.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2300, and continue the process.

On to step 16:
If we divide 2300 by 330, we get 6 and a remainder of 320.
Record the quotient 6 as the next digit in the result. 
Result so far: 193843.06969696
Deduct 1980 from 2300 and we're left with 320.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3200, and continue the process.

The final result is 193843.06969696 with a remainder of 3.2e-07.