Let's divide 66609916 by 27
The aim is to understand the frequency of 27 in 66609916.

Advancing to step 1:
If we divide 6 by 27, we get 0 and a remainder of 6.
The next digit of our result is 0. 
Result so far: 0.0
Deduct 0 from 6 and we're left with 6.
Take the next digit (6) from the dividend and append it to 6, then repeat: 66 / 27

Step 2:
When dividing 66 by 27, we get 2 with a remainder of 12.
Put 2 as the next digit of the answer. 
Result so far: 2.0
The remainder is 12 after subtracting 54 from 66.
Take the next digit (6) from the dividend and append it to 12, then repeat: 126 / 27

Going ahead to step 3:
27 can be fit into 126 4 times, resulting in a remainder of 18.
Use 4 as the next digit of our solution. 
Result so far: 24.0
Subtracting 108 from 126 leaves us with 18.
Bring next digit (0) of the dividend behind the 18 and repeat the process: 180 / 27

Advancing to step 4:
27 can be fit into 180 6 times, resulting in a remainder of 18.
Write down 6 as next digit of the result. 
Result so far: 246.0
Deduct 162 from 180 and we're left with 18.
Grab the next digit (9) from the dividend, add it to 18, then carry on: 189 / 27

Advancing to step 5:
189 divided by 27 is 7 with a remainder of 0.
The next digit of our result is 7. 
Result so far: 2467.0
The remainder is 0 after subtracting 189 from 189.
Bring next digit (9) of the dividend behind the 0 and repeat the process: 9 / 27

On to step 6:
9 divided by 27 is 0 with a remainder of 9.
Put 0 as the next digit of the answer. 
Result so far: 24670.0
Subtract 0 from 9 to get 9.
Append the next digit (1) from the dividend to 9 and continue with: 91 / 27

Moving on to step 7:
The number 27 fits into 91 3 times, leaving a remainder of 10.
Record the quotient 3 as the next digit in the result. 
Result so far: 246703.0
Subtract 81 from 91 to get 10.
Grab the next digit (6) from the dividend, add it to 10, then carry on: 106 / 27

Let's proceed to step 8:
The number 27 fits into 106 3 times, leaving a remainder of 25.
Record the quotient 3 as the next digit in the result. 
Result so far: 2467033.0
Subtracting 81 from 106 leaves us with 25.
Since there are no more digits in the dividend, we add a zero to the remainder making it 250, and continue the process.

Going ahead to step 9:
27 goes into 250 9 times with a remainder of 7.
Put 9 as the next digit of the answer. 
Result so far: 2467033.9
Subtracting 243 from 250 leaves us with 7.
Since there are no more digits in the dividend, we add a zero to the remainder making it 70, and continue the process.

Going ahead to step 10:
27 goes into 70 2 times with a remainder of 16.
The number 2 becomes the next digit in our result. 
Result so far: 2467033.92
Deduct 54 from 70 and we're left with 16.
Since there are no more digits in the dividend, we add a zero to the remainder making it 160, and continue the process.

Let's proceed to step 11:
27 goes into 160 5 times with a remainder of 25.
Record the quotient 5 as the next digit in the result. 
Result so far: 2467033.925
Subtracting 135 from 160 leaves us with 25.
Since there are no more digits in the dividend, we add a zero to the remainder making it 250, and continue the process.

Step 12:
27 can be fit into 250 9 times, resulting in a remainder of 7.
Record the quotient 9 as the next digit in the result. 
Result so far: 2467033.9259
If we subtract 243 from 250, we get 7.
Since there are no more digits in the dividend, we add a zero to the remainder making it 70, and continue the process.

Let's proceed to step 13:
If we divide 70 by 27, we get 2 and a remainder of 16.
The next digit of our result is 2. 
Result so far: 2467033.92592
Subtracting 54 from 70 leaves us with 16.
Since there are no more digits in the dividend, we add a zero to the remainder making it 160, and continue the process.

Going ahead to step 14:
27 can be fit into 160 5 times, resulting in a remainder of 25.
Write down 5 as next digit of the result. 
Result so far: 2467033.925925
Subtract 135 from 160 to get 25.
Since there are no more digits in the dividend, we add a zero to the remainder making it 250, and continue the process.

Let's proceed to step 15:
27 can be fit into 250 9 times, resulting in a remainder of 7.
The next digit of our result is 9. 
Result so far: 2467033.9259259
If we subtract 243 from 250, we get 7.
Since there are no more digits in the dividend, we add a zero to the remainder making it 70, and continue the process.

Let's proceed to step 16:
When dividing 70 by 27, we get 2 with a remainder of 16.
Use 2 as the next digit of our solution. 
Result so far: 2467033.92592592
Subtracting 54 from 70 leaves us with 16.
Since there are no more digits in the dividend, we add a zero to the remainder making it 160, and continue the process.

The final result is 2467033.92592592 with a remainder of 1.6e-08.