6684679 divided by 669 
The aim is to understand the frequency of 669 in 6684679.

Advancing to step 1:
669 goes into 6 0 times with a remainder of 6.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Deduct 0 from 6 and we're left with 6.
Bring next digit (6) of the dividend behind the 6 and repeat the process: 66 / 669

Advancing to step 2:
When dividing 66 by 669, we get 0 with a remainder of 66.
The next digit of our result is 0. 
Result so far: 0.0
Subtracting 0 from 66 leaves us with 66.
Append the next digit (8) from the dividend to 66 and continue with: 668 / 669

On to step 3:
The number 669 fits into 668 0 times, leaving a remainder of 668.
The next digit of our result is 0. 
Result so far: 0.0
If we subtract 0 from 668, we get 668.
Take the next digit (4) from the dividend and append it to 668, then repeat: 6684 / 669

Going ahead to step 4:
669 goes into 6684 9 times with a remainder of 663.
Write down 9 as next digit of the result. 
Result so far: 9.0
Subtract 6021 from 6684 to get 663.
Append the next digit (6) from the dividend to 663 and continue with: 6636 / 669

On to step 5:
The number 669 fits into 6636 9 times, leaving a remainder of 615.
Put 9 as the next digit of the answer. 
Result so far: 99.0
If we subtract 6021 from 6636, we get 615.
Take the next digit (7) from the dividend and append it to 615, then repeat: 6157 / 669

Going ahead to step 6:
669 can be fit into 6157 9 times, resulting in a remainder of 136.
Write down 9 as next digit of the result. 
Result so far: 999.0
If we take 6021 away from 6157, we end up with 136.
Fetch the next digit (9) from the dividend, attach it to 136 and continue: 1369 / 669

Moving on to step 7:
669 can be fit into 1369 2 times, resulting in a remainder of 31.
The next digit of our result is 2. 
Result so far: 9992.0
If we take 1338 away from 1369, we end up with 31.
Since there are no more digits in the dividend, we add a zero to the remainder making it 310, and continue the process.

Let's proceed to step 8:
If we divide 310 by 669, we get 0 and a remainder of 310.
Record the quotient 0 as the next digit in the result. 
Result so far: 9992.0
Subtract 0 from 310 to get 310.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3100, and continue the process.

Advancing to step 9:
If we divide 3100 by 669, we get 4 and a remainder of 424.
Put 4 as the next digit of the answer. 
Result so far: 9992.04
If we take 2676 away from 3100, we end up with 424.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4240, and continue the process.

On to step 10:
The number 669 fits into 4240 6 times, leaving a remainder of 226.
The number 6 becomes the next digit in our result. 
Result so far: 9992.046
Deduct 4014 from 4240 and we're left with 226.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2260, and continue the process.

Advancing to step 11:
If we divide 2260 by 669, we get 3 and a remainder of 253.
Put 3 as the next digit of the answer. 
Result so far: 9992.0463
The remainder is 253 after subtracting 2007 from 2260.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2530, and continue the process.

Let's proceed to step 12:
When dividing 2530 by 669, we get 3 with a remainder of 523.
The number 3 becomes the next digit in our result. 
Result so far: 9992.04633
The remainder is 523 after subtracting 2007 from 2530.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5230, and continue the process.

In conclusion, the division gives 9992.04633 with a balance of 0.000523.