807278 divided by 66 
The aim is to understand the frequency of 66 in 807278.

Going ahead to step 1:
If we divide 8 by 66, we get 0 and 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.
Fetch the next digit (0) from the dividend, attach it to 8 and continue: 80 / 66

Advancing to step 2:
If we divide 80 by 66, we get 1 and a remainder of 14.
Use 1 as the next digit of our solution. 
Result so far: 1.0
Subtract 66 from 80 to get 14.
Bring next digit (7) of the dividend behind the 14 and repeat the process: 147 / 66

Going ahead to step 3:
147 divided by 66 is 2 with a remainder of 15.
Write down 2 as next digit of the result. 
Result so far: 12.0
The remainder is 15 after subtracting 132 from 147.
Take the next digit (2) from the dividend and append it to 15, then repeat: 152 / 66

Going ahead to step 4:
If we divide 152 by 66, we get 2 and a remainder of 20.
Write down 2 as next digit of the result. 
Result so far: 122.0
If we take 132 away from 152, we end up with 20.
Grab the next digit (7) from the dividend, add it to 20, then carry on: 207 / 66

Advancing to step 5:
207 divided by 66 is 3 with a remainder of 9.
The next digit of our result is 3. 
Result so far: 1223.0
The remainder is 9 after subtracting 198 from 207.
Include the next digit (8) from the dividend after 9, then repeat: 98 / 66

Step 6:
The number 66 fits into 98 1 times, leaving a remainder of 32.
Record the quotient 1 as the next digit in the result. 
Result so far: 12231.0
Subtract 66 from 98 to get 32.
Since there are no more digits in the dividend, we add a zero to the remainder making it 320, and continue the process.

Advancing to step 7:
66 can be fit into 320 4 times, resulting in a remainder of 56.
Put 4 as the next digit of the answer. 
Result so far: 12231.4
If we subtract 264 from 320, we get 56.
Since there are no more digits in the dividend, we add a zero to the remainder making it 560, and continue the process.

Step 8:
The number 66 fits into 560 8 times, leaving a remainder of 32.
Write down 8 as next digit of the result. 
Result so far: 12231.48
The remainder is 32 after subtracting 528 from 560.
Since there are no more digits in the dividend, we add a zero to the remainder making it 320, and continue the process.

Moving on to step 9:
If we divide 320 by 66, we get 4 and a remainder of 56.
Record the quotient 4 as the next digit in the result. 
Result so far: 12231.484
Deduct 264 from 320 and we're left with 56.
Since there are no more digits in the dividend, we add a zero to the remainder making it 560, and continue the process.

Moving on to step 10:
560 divided by 66 is 8 with a remainder of 32.
The number 8 becomes the next digit in our result. 
Result so far: 12231.4848
The remainder is 32 after subtracting 528 from 560.
Since there are no more digits in the dividend, we add a zero to the remainder making it 320, and continue the process.

Advancing to step 11:
320 divided by 66 is 4 with a remainder of 56.
Record the quotient 4 as the next digit in the result. 
Result so far: 12231.48484
Deduct 264 from 320 and we're left with 56.
Since there are no more digits in the dividend, we add a zero to the remainder making it 560, and continue the process.

Step 12:
When dividing 560 by 66, we get 8 with a remainder of 32.
The number 8 becomes the next digit in our result. 
Result so far: 12231.484848
If we subtract 528 from 560, we get 32.
Since there are no more digits in the dividend, we add a zero to the remainder making it 320, and continue the process.

Step 13:
The number 66 fits into 320 4 times, leaving a remainder of 56.
The number 4 becomes the next digit in our result. 
Result so far: 12231.4848484
Subtracting 264 from 320 leaves us with 56.
Since there are no more digits in the dividend, we add a zero to the remainder making it 560, and continue the process.

On to step 14:
560 divided by 66 is 8 with a remainder of 32.
The next digit of our result is 8. 
Result so far: 12231.48484848
The remainder is 32 after subtracting 528 from 560.
Since there are no more digits in the dividend, we add a zero to the remainder making it 320, and continue the process.

The quotient of the division is 12231.48484848, and the remainder is 3.2e-08.