We're dividing 891353 by 66 
The aim is to understand the frequency of 66 in 891353.

Let's proceed to 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
Subtracting 0 from 8 leaves us with 8.
Fetch the next digit (9) from the dividend, attach it to 8 and continue: 89 / 66

On to step 2:
89 divided by 66 is 1 with a remainder of 23.
Record the quotient 1 as the next digit in the result. 
Result so far: 1.0
If we take 66 away from 89, we end up with 23.
Bring next digit (1) of the dividend behind the 23 and repeat the process: 231 / 66

On to step 3:
66 goes into 231 3 times with a remainder of 33.
Use 3 as the next digit of our solution. 
Result so far: 13.0
If we take 198 away from 231, we end up with 33.
Bring next digit (3) of the dividend behind the 33 and repeat the process: 333 / 66

Advancing to step 4:
When dividing 333 by 66, we get 5 with a remainder of 3.
The next digit of our result is 5. 
Result so far: 135.0
The remainder is 3 after subtracting 330 from 333.
Bring next digit (5) of the dividend behind the 3 and repeat the process: 35 / 66

Advancing to step 5:
66 can be fit into 35 0 times, resulting in a remainder of 35.
Record the quotient 0 as the next digit in the result. 
Result so far: 1350.0
If we take 0 away from 35, we end up with 35.
Fetch the next digit (3) from the dividend, attach it to 35 and continue: 353 / 66

Moving on to step 6:
If we divide 353 by 66, we get 5 and a remainder of 23.
Record the quotient 5 as the next digit in the result. 
Result so far: 13505.0
If we take 330 away from 353, we end up with 23.
Since there are no more digits in the dividend, we add a zero to the remainder making it 230, and continue the process.

Going ahead to step 7:
66 can be fit into 230 3 times, resulting in a remainder of 32.
The number 3 becomes the next digit in our result. 
Result so far: 13505.3
Subtracting 198 from 230 leaves us with 32.
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 8:
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: 13505.34
The remainder is 56 after subtracting 264 from 320.
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 9:
When dividing 560 by 66, we get 8 with a remainder of 32.
Write down 8 as next digit of the result. 
Result so far: 13505.348
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.

Step 10:
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: 13505.3484
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.

Going ahead to step 11:
66 goes into 560 8 times with a remainder of 32.
Put 8 as the next digit of the answer. 
Result so far: 13505.34848
Subtract 528 from 560 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.

Moving on to step 12:
When dividing 320 by 66, we get 4 with a remainder of 56.
Put 4 as the next digit of the answer. 
Result so far: 13505.348484
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.

Let's proceed to step 13:
The number 66 fits into 560 8 times, leaving a remainder of 32.
Use 8 as the next digit of our solution. 
Result so far: 13505.3484848
Deduct 528 from 560 and we're left with 32.
Since there are no more digits in the dividend, we add a zero to the remainder making it 320, and continue the process.

On to step 14:
The number 66 fits into 320 4 times, leaving a remainder of 56.
Record the quotient 4 as the next digit in the result. 
Result so far: 13505.34848484
Subtract 264 from 320 to 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.

Our division results in 13505.34848484 with a remaining 5.6e-08.