Let's divide 6666215 by 311
The aim is to understand the frequency of 311 in 6666215.

Advancing to step 1:
6 divided by 311 is 0 with a remainder of 6.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Subtract 0 from 6 to get 6.
Grab the next digit (6) from the dividend, add it to 6, then carry on: 66 / 311

Step 2:
66 divided by 311 is 0 with a remainder of 66.
Put 0 as the next digit of the answer. 
Result so far: 0.0
If we take 0 away from 66, we end up with 66.
Take the next digit (6) from the dividend and append it to 66, then repeat: 666 / 311

On to step 3:
666 divided by 311 is 2 with a remainder of 44.
Write down 2 as next digit of the result. 
Result so far: 2.0
If we subtract 622 from 666, we get 44.
Bring next digit (6) of the dividend behind the 44 and repeat the process: 446 / 311

Let's proceed to step 4:
If we divide 446 by 311, we get 1 and a remainder of 135.
The number 1 becomes the next digit in our result. 
Result so far: 21.0
The remainder is 135 after subtracting 311 from 446.
Bring next digit (2) of the dividend behind the 135 and repeat the process: 1352 / 311

Moving on to step 5:
311 goes into 1352 4 times with a remainder of 108.
Write down 4 as next digit of the result. 
Result so far: 214.0
If we take 1244 away from 1352, we end up with 108.
Bring next digit (1) of the dividend behind the 108 and repeat the process: 1081 / 311

Step 6:
311 goes into 1081 3 times with a remainder of 148.
The next digit of our result is 3. 
Result so far: 2143.0
Subtracting 933 from 1081 leaves us with 148.
Append the next digit (5) from the dividend to 148 and continue with: 1485 / 311

Moving on to step 7:
If we divide 1485 by 311, we get 4 and a remainder of 241.
The next digit of our result is 4. 
Result so far: 21434.0
Subtracting 1244 from 1485 leaves us with 241.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2410, and continue the process.

Moving on to step 8:
When dividing 2410 by 311, we get 7 with a remainder of 233.
The number 7 becomes the next digit in our result. 
Result so far: 21434.7
Deduct 2177 from 2410 and we're left with 233.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2330, and continue the process.

Step 9:
When dividing 2330 by 311, we get 7 with a remainder of 153.
Use 7 as the next digit of our solution. 
Result so far: 21434.77
Subtracting 2177 from 2330 leaves us with 153.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1530, and continue the process.

After the division, we end up with 21434.77 and a remainder of 0.153.