We divide 904801 by 66
The aim is to understand the frequency of 66 in 904801.

Step 1:
When dividing 9 by 66, we get 0 with a remainder of 9.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Subtract 0 from 9 to get 9.
Include the next digit (0) from the dividend after 9, then repeat: 90 / 66

On to step 2:
When dividing 90 by 66, we get 1 with a remainder of 24.
Use 1 as the next digit of our solution. 
Result so far: 1.0
If we subtract 66 from 90, we get 24.
Append the next digit (4) from the dividend to 24 and continue with: 244 / 66

On to step 3:
66 can be fit into 244 3 times, resulting in a remainder of 46.
The number 3 becomes the next digit in our result. 
Result so far: 13.0
If we take 198 away from 244, we end up with 46.
Bring next digit (8) of the dividend behind the 46 and repeat the process: 468 / 66

Step 4:
When dividing 468 by 66, we get 7 with a remainder of 6.
Record the quotient 7 as the next digit in the result. 
Result so far: 137.0
If we subtract 462 from 468, we get 6.
Append the next digit (0) from the dividend to 6 and continue with: 60 / 66

Moving on to step 5:
66 can be fit into 60 0 times, resulting in a remainder of 60.
Use 0 as the next digit of our solution. 
Result so far: 1370.0
Deduct 0 from 60 and we're left with 60.
Fetch the next digit (1) from the dividend, attach it to 60 and continue: 601 / 66

Going ahead to step 6:
The number 66 fits into 601 9 times, leaving a remainder of 7.
Put 9 as the next digit of the answer. 
Result so far: 13709.0
If we take 594 away from 601, we end up 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.

Let's proceed to step 7:
The number 66 fits into 70 1 times, leaving a remainder of 4.
The next digit of our result is 1. 
Result so far: 13709.1
Subtracting 66 from 70 leaves us with 4.
Since there are no more digits in the dividend, we add a zero to the remainder making it 40, and continue the process.

On to step 8:
The number 66 fits into 40 0 times, leaving a remainder of 40.
Write down 0 as next digit of the result. 
Result so far: 13709.1
Subtract 0 from 40 to get 40.
Since there are no more digits in the dividend, we add a zero to the remainder making it 400, and continue the process.

Advancing to step 9:
When dividing 400 by 66, we get 6 with a remainder of 4.
Write down 6 as next digit of the result. 
Result so far: 13709.106
Subtract 396 from 400 to get 4.
Since there are no more digits in the dividend, we add a zero to the remainder making it 40, and continue the process.

Step 10:
40 divided by 66 is 0 with a remainder of 40.
Write down 0 as next digit of the result. 
Result so far: 13709.106
Subtracting 0 from 40 leaves us with 40.
Since there are no more digits in the dividend, we add a zero to the remainder making it 400, and continue the process.

Moving on to step 11:
When dividing 400 by 66, we get 6 with a remainder of 4.
Put 6 as the next digit of the answer. 
Result so far: 13709.10606
If we take 396 away from 400, we end up with 4.
Since there are no more digits in the dividend, we add a zero to the remainder making it 40, and continue the process.

Advancing to step 12:
If we divide 40 by 66, we get 0 and a remainder of 40.
The next digit of our result is 0. 
Result so far: 13709.10606
If we subtract 0 from 40, we get 40.
Since there are no more digits in the dividend, we add a zero to the remainder making it 400, and continue the process.

On to step 13:
400 divided by 66 is 6 with a remainder of 4.
Put 6 as the next digit of the answer. 
Result so far: 13709.1060606
Deduct 396 from 400 and we're left with 4.
Since there are no more digits in the dividend, we add a zero to the remainder making it 40, and continue the process.

Advancing to step 14:
When dividing 40 by 66, we get 0 with a remainder of 40.
Record the quotient 0 as the next digit in the result. 
Result so far: 13709.1060606
Deduct 0 from 40 and we're left with 40.
Since there are no more digits in the dividend, we add a zero to the remainder making it 400, and continue the process.

The final result is 13709.1060606 with a remainder of 4e-08.