We divide 661674 by 66
The aim is to understand the frequency of 66 in 661674.

Advancing to step 1:
When dividing 6 by 66, we get 0 with a remainder of 6.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Subtract 0 from 6 to get 6.
Bring next digit (6) of the dividend behind the 6 and repeat the process: 66 / 66

Going ahead to step 2:
66 goes into 66 1 times with a remainder of 0.
Put 1 as the next digit of the answer. 
Result so far: 1.0
If we subtract 66 from 66, we get 0.
Grab the next digit (1) from the dividend, add it to 0, then carry on: 1 / 66

Advancing to step 3:
66 can be fit into 1 0 times, resulting in a remainder of 1.
The number 0 becomes the next digit in our result. 
Result so far: 10.0
Subtracting 0 from 1 leaves us with 1.
Append the next digit (6) from the dividend to 1 and continue with: 16 / 66

Moving on to step 4:
16 divided by 66 is 0 with a remainder of 16.
The number 0 becomes the next digit in our result. 
Result so far: 100.0
Subtract 0 from 16 to get 16.
Append the next digit (7) from the dividend to 16 and continue with: 167 / 66

Step 5:
167 divided by 66 is 2 with a remainder of 35.
Write down 2 as next digit of the result. 
Result so far: 1002.0
If we take 132 away from 167, we end up with 35.
Take the next digit (4) from the dividend and append it to 35, then repeat: 354 / 66

Advancing to step 6:
When dividing 354 by 66, we get 5 with a remainder of 24.
Put 5 as the next digit of the answer. 
Result so far: 10025.0
If we take 330 away from 354, we end up with 24.
Since there are no more digits in the dividend, we add a zero to the remainder making it 240, and continue the process.

Moving on to step 7:
66 can be fit into 240 3 times, resulting in a remainder of 42.
Use 3 as the next digit of our solution. 
Result so far: 10025.3
Subtracting 198 from 240 leaves us with 42.
Since there are no more digits in the dividend, we add a zero to the remainder making it 420, and continue the process.

On to step 8:
If we divide 420 by 66, we get 6 and a remainder of 24.
The next digit of our result is 6. 
Result so far: 10025.36
The remainder is 24 after subtracting 396 from 420.
Since there are no more digits in the dividend, we add a zero to the remainder making it 240, and continue the process.

On to step 9:
The number 66 fits into 240 3 times, leaving a remainder of 42.
Write down 3 as next digit of the result. 
Result so far: 10025.363
If we take 198 away from 240, we end up with 42.
Since there are no more digits in the dividend, we add a zero to the remainder making it 420, and continue the process.

Advancing to step 10:
66 can be fit into 420 6 times, resulting in a remainder of 24.
Write down 6 as next digit of the result. 
Result so far: 10025.3636
If we take 396 away from 420, we end up with 24.
Since there are no more digits in the dividend, we add a zero to the remainder making it 240, and continue the process.

Going ahead to step 11:
When dividing 240 by 66, we get 3 with a remainder of 42.
Record the quotient 3 as the next digit in the result. 
Result so far: 10025.36363
If we take 198 away from 240, we end up with 42.
Since there are no more digits in the dividend, we add a zero to the remainder making it 420, and continue the process.

Step 12:
If we divide 420 by 66, we get 6 and a remainder of 24.
Use 6 as the next digit of our solution. 
Result so far: 10025.363636
Subtract 396 from 420 to get 24.
Since there are no more digits in the dividend, we add a zero to the remainder making it 240, and continue the process.

Going ahead to step 13:
The number 66 fits into 240 3 times, leaving a remainder of 42.
Write down 3 as next digit of the result. 
Result so far: 10025.3636363
If we subtract 198 from 240, we get 42.
Since there are no more digits in the dividend, we add a zero to the remainder making it 420, and continue the process.

Step 14:
420 divided by 66 is 6 with a remainder of 24.
Write down 6 as next digit of the result. 
Result so far: 10025.36363636
The remainder is 24 after subtracting 396 from 420.
Since there are no more digits in the dividend, we add a zero to the remainder making it 240, and continue the process.

The quotient of the division is 10025.36363636, and the remainder is 2.4e-08.