801714 divided by 66 
The aim is to understand the frequency of 66 in 801714.

Step 1:
The number 66 fits into 8 0 times, leaving a remainder of 8.
Write down 0 as next digit of the result. 
Result so far: 0.0
The remainder is 8 after subtracting 0 from 8.
Grab the next digit (0) from the dividend, add it to 8, then carry on: 80 / 66

Going ahead to step 2:
80 divided by 66 is 1 with a remainder of 14.
Record the quotient 1 as the next digit in the result. 
Result so far: 1.0
The remainder is 14 after subtracting 66 from 80.
Bring next digit (1) of the dividend behind the 14 and repeat the process: 141 / 66

Moving on to step 3:
When dividing 141 by 66, we get 2 with a remainder of 9.
Record the quotient 2 as the next digit in the result. 
Result so far: 12.0
Subtract 132 from 141 to get 9.
Include the next digit (7) from the dividend after 9, then repeat: 97 / 66

Going ahead to step 4:
97 divided by 66 is 1 with a remainder of 31.
Write down 1 as next digit of the result. 
Result so far: 121.0
Subtract 66 from 97 to get 31.
Fetch the next digit (1) from the dividend, attach it to 31 and continue: 311 / 66

Advancing to step 5:
When dividing 311 by 66, we get 4 with a remainder of 47.
The number 4 becomes the next digit in our result. 
Result so far: 1214.0
The remainder is 47 after subtracting 264 from 311.
Include the next digit (4) from the dividend after 47, then repeat: 474 / 66

Moving on to step 6:
66 can be fit into 474 7 times, resulting in a remainder of 12.
Record the quotient 7 as the next digit in the result. 
Result so far: 12147.0
If we subtract 462 from 474, we get 12.
Since there are no more digits in the dividend, we add a zero to the remainder making it 120, and continue the process.

Going ahead to step 7:
When dividing 120 by 66, we get 1 with a remainder of 54.
Record the quotient 1 as the next digit in the result. 
Result so far: 12147.1
If we subtract 66 from 120, we get 54.
Since there are no more digits in the dividend, we add a zero to the remainder making it 540, and continue the process.

On to step 8:
66 can be fit into 540 8 times, resulting in a remainder of 12.
The number 8 becomes the next digit in our result. 
Result so far: 12147.18
Subtract 528 from 540 to get 12.
Since there are no more digits in the dividend, we add a zero to the remainder making it 120, and continue the process.

Advancing to step 9:
66 can be fit into 120 1 times, resulting in a remainder of 54.
Put 1 as the next digit of the answer. 
Result so far: 12147.181
Subtracting 66 from 120 leaves us with 54.
Since there are no more digits in the dividend, we add a zero to the remainder making it 540, and continue the process.

Step 10:
66 goes into 540 8 times with a remainder of 12.
The number 8 becomes the next digit in our result. 
Result so far: 12147.1818
Deduct 528 from 540 and we're left with 12.
Since there are no more digits in the dividend, we add a zero to the remainder making it 120, and continue the process.

Let's proceed to step 11:
If we divide 120 by 66, we get 1 and a remainder of 54.
Use 1 as the next digit of our solution. 
Result so far: 12147.18181
Subtract 66 from 120 to get 54.
Since there are no more digits in the dividend, we add a zero to the remainder making it 540, and continue the process.

Step 12:
540 divided by 66 is 8 with a remainder of 12.
Record the quotient 8 as the next digit in the result. 
Result so far: 12147.181818
Deduct 528 from 540 and we're left with 12.
Since there are no more digits in the dividend, we add a zero to the remainder making it 120, and continue the process.

On to step 13:
66 goes into 120 1 times with a remainder of 54.
Record the quotient 1 as the next digit in the result. 
Result so far: 12147.1818181
Deduct 66 from 120 and we're left with 54.
Since there are no more digits in the dividend, we add a zero to the remainder making it 540, and continue the process.

Going ahead to step 14:
66 goes into 540 8 times with a remainder of 12.
Use 8 as the next digit of our solution. 
Result so far: 12147.18181818
If we subtract 528 from 540, we get 12.
Since there are no more digits in the dividend, we add a zero to the remainder making it 120, and continue the process.

The quotient of the division is 12147.18181818, and the remainder is 1.2e-08.