30682728 ÷ 669 
The aim is to understand the frequency of 669 in 30682728.

Step 1:
If we divide 3 by 669, we get 0 and a remainder of 3.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Subtracting 0 from 3 leaves us with 3.
Take the next digit (0) from the dividend and append it to 3, then repeat: 30 / 669

Going ahead to step 2:
When dividing 30 by 669, we get 0 with a remainder of 30.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
If we subtract 0 from 30, we get 30.
Fetch the next digit (6) from the dividend, attach it to 30 and continue: 306 / 669

Advancing to step 3:
669 can be fit into 306 0 times, resulting in a remainder of 306.
The next digit of our result is 0. 
Result so far: 0.0
If we subtract 0 from 306, we get 306.
Take the next digit (8) from the dividend and append it to 306, then repeat: 3068 / 669

Let's proceed to step 4:
If we divide 3068 by 669, we get 4 and a remainder of 392.
Write down 4 as next digit of the result. 
Result so far: 4.0
If we subtract 2676 from 3068, we get 392.
Grab the next digit (2) from the dividend, add it to 392, then carry on: 3922 / 669

On to step 5:
3922 divided by 669 is 5 with a remainder of 577.
Use 5 as the next digit of our solution. 
Result so far: 45.0
If we subtract 3345 from 3922, we get 577.
Fetch the next digit (7) from the dividend, attach it to 577 and continue: 5777 / 669

Step 6:
When dividing 5777 by 669, we get 8 with a remainder of 425.
Record the quotient 8 as the next digit in the result. 
Result so far: 458.0
The remainder is 425 after subtracting 5352 from 5777.
Grab the next digit (2) from the dividend, add it to 425, then carry on: 4252 / 669

Let's proceed to step 7:
The number 669 fits into 4252 6 times, leaving a remainder of 238.
The next digit of our result is 6. 
Result so far: 4586.0
The remainder is 238 after subtracting 4014 from 4252.
Take the next digit (8) from the dividend and append it to 238, then repeat: 2388 / 669

Let's proceed to step 8:
669 goes into 2388 3 times with a remainder of 381.
The next digit of our result is 3. 
Result so far: 45863.0
If we subtract 2007 from 2388, we get 381.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3810, and continue the process.

Going ahead to step 9:
669 goes into 3810 5 times with a remainder of 465.
Put 5 as the next digit of the answer. 
Result so far: 45863.5
If we subtract 3345 from 3810, we get 465.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4650, and continue the process.

Moving on to step 10:
669 goes into 4650 6 times with a remainder of 636.
Write down 6 as next digit of the result. 
Result so far: 45863.56
Subtract 4014 from 4650 to get 636.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6360, and continue the process.

Let's proceed to step 11:
When dividing 6360 by 669, we get 9 with a remainder of 339.
The next digit of our result is 9. 
Result so far: 45863.569
The remainder is 339 after subtracting 6021 from 6360.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3390, and continue the process.

Moving on to step 12:
When dividing 3390 by 669, we get 5 with a remainder of 45.
Write down 5 as next digit of the result. 
Result so far: 45863.5695
Subtract 3345 from 3390 to get 45.
Since there are no more digits in the dividend, we add a zero to the remainder making it 450, and continue the process.

Going ahead to step 13:
If we divide 450 by 669, we get 0 and a remainder of 450.
Put 0 as the next digit of the answer. 
Result so far: 45863.5695
Deduct 0 from 450 and we're left with 450.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4500, and continue the process.

Advancing to step 14:
669 goes into 4500 6 times with a remainder of 486.
The number 6 becomes the next digit in our result. 
Result so far: 45863.569506
Subtract 4014 from 4500 to get 486.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4860, and continue the process.

Step 15:
The number 669 fits into 4860 7 times, leaving a remainder of 177.
The next digit of our result is 7. 
Result so far: 45863.5695067
If we subtract 4683 from 4860, we get 177.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1770, and continue the process.

Let's proceed to step 16:
1770 divided by 669 is 2 with a remainder of 432.
Record the quotient 2 as the next digit in the result. 
Result so far: 45863.56950672
Subtract 1338 from 1770 to get 432.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4320, and continue the process.

Our division results in 45863.56950672 with a remaining 4.32e-07.