Let's divide 690484 by 66
The aim is to understand the frequency of 66 in 690484.

Step 1:
66 can be fit into 6 0 times, resulting in 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.
Bring next digit (9) of the dividend behind the 6 and repeat the process: 69 / 66

Advancing to step 2:
When dividing 69 by 66, we get 1 with a remainder of 3.
Record the quotient 1 as the next digit in the result. 
Result so far: 1.0
If we take 66 away from 69, we end up with 3.
Append the next digit (0) from the dividend to 3 and continue with: 30 / 66

Let's proceed to step 3:
When dividing 30 by 66, we get 0 with a remainder of 30.
The number 0 becomes the next digit in our result. 
Result so far: 10.0
Deduct 0 from 30 and we're left with 30.
Append the next digit (4) from the dividend to 30 and continue with: 304 / 66

Step 4:
When dividing 304 by 66, we get 4 with a remainder of 40.
Record the quotient 4 as the next digit in the result. 
Result so far: 104.0
If we subtract 264 from 304, we get 40.
Bring next digit (8) of the dividend behind the 40 and repeat the process: 408 / 66

Let's proceed to step 5:
If we divide 408 by 66, we get 6 and a remainder of 12.
The next digit of our result is 6. 
Result so far: 1046.0
If we subtract 396 from 408, we get 12.
Grab the next digit (4) from the dividend, add it to 12, then carry on: 124 / 66

Moving on to step 6:
The number 66 fits into 124 1 times, leaving a remainder of 58.
Put 1 as the next digit of the answer. 
Result so far: 10461.0
Deduct 66 from 124 and we're left with 58.
Since there are no more digits in the dividend, we add a zero to the remainder making it 580, and continue the process.

On to step 7:
The number 66 fits into 580 8 times, leaving a remainder of 52.
The next digit of our result is 8. 
Result so far: 10461.8
If we take 528 away from 580, we end up with 52.
Since there are no more digits in the dividend, we add a zero to the remainder making it 520, and continue the process.

Moving on to step 8:
66 goes into 520 7 times with a remainder of 58.
Write down 7 as next digit of the result. 
Result so far: 10461.87
If we take 462 away from 520, we end up with 58.
Since there are no more digits in the dividend, we add a zero to the remainder making it 580, and continue the process.

Moving on to step 9:
When dividing 580 by 66, we get 8 with a remainder of 52.
Use 8 as the next digit of our solution. 
Result so far: 10461.878
If we subtract 528 from 580, we get 52.
Since there are no more digits in the dividend, we add a zero to the remainder making it 520, and continue the process.

Going ahead to step 10:
66 goes into 520 7 times with a remainder of 58.
Put 7 as the next digit of the answer. 
Result so far: 10461.8787
Deduct 462 from 520 and we're left with 58.
Since there are no more digits in the dividend, we add a zero to the remainder making it 580, and continue the process.

Moving on to step 11:
66 can be fit into 580 8 times, resulting in a remainder of 52.
Put 8 as the next digit of the answer. 
Result so far: 10461.87878
If we subtract 528 from 580, we get 52.
Since there are no more digits in the dividend, we add a zero to the remainder making it 520, and continue the process.

Let's proceed to step 12:
520 divided by 66 is 7 with a remainder of 58.
The number 7 becomes the next digit in our result. 
Result so far: 10461.878787
The remainder is 58 after subtracting 462 from 520.
Since there are no more digits in the dividend, we add a zero to the remainder making it 580, and continue the process.

Advancing to step 13:
If we divide 580 by 66, we get 8 and a remainder of 52.
The next digit of our result is 8. 
Result so far: 10461.8787878
Deduct 528 from 580 and we're left with 52.
Since there are no more digits in the dividend, we add a zero to the remainder making it 520, and continue the process.

Let's proceed to step 14:
When dividing 520 by 66, we get 7 with a remainder of 58.
Record the quotient 7 as the next digit in the result. 
Result so far: 10461.87878787
Subtract 462 from 520 to get 58.
Since there are no more digits in the dividend, we add a zero to the remainder making it 580, and continue the process.

After the division, we end up with 10461.87878787 and a remainder of 5.8e-08.