858627 divided by 66 
The aim is to understand the frequency of 66 in 858627.

Let's proceed to step 1:
66 goes into 8 0 times with a remainder of 8.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Deduct 0 from 8 and we're left with 8.
Grab the next digit (5) from the dividend, add it to 8, then carry on: 85 / 66

Advancing to step 2:
85 divided by 66 is 1 with a remainder of 19.
The number 1 becomes the next digit in our result. 
Result so far: 1.0
If we take 66 away from 85, we end up with 19.
Bring next digit (8) of the dividend behind the 19 and repeat the process: 198 / 66

On to step 3:
66 can be fit into 198 3 times, resulting in a remainder of 0.
The number 3 becomes the next digit in our result. 
Result so far: 13.0
If we subtract 198 from 198, we get 0.
Fetch the next digit (6) from the dividend, attach it to 0 and continue: 6 / 66

Let's proceed to step 4:
When dividing 6 by 66, we get 0 with a remainder of 6.
Use 0 as the next digit of our solution. 
Result so far: 130.0
The remainder is 6 after subtracting 0 from 6.
Bring next digit (2) of the dividend behind the 6 and repeat the process: 62 / 66

Step 5:
66 goes into 62 0 times with a remainder of 62.
Write down 0 as next digit of the result. 
Result so far: 1300.0
If we subtract 0 from 62, we get 62.
Append the next digit (7) from the dividend to 62 and continue with: 627 / 66

Moving on to step 6:
If we divide 627 by 66, we get 9 and a remainder of 33.
Put 9 as the next digit of the answer. 
Result so far: 13009.0
Subtracting 594 from 627 leaves us with 33.
Since there are no more digits in the dividend, we add a zero to the remainder making it 330, and continue the process.

Step 7:
330 divided by 66 is 5 with a remainder of 0.
The number 5 becomes the next digit in our result. 
Result so far: 13009.5
Subtracting 330 from 330 leaves us with 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

Let's proceed to step 8:
If we divide 0 by 66, we get 0 and a remainder of 0.
Record the quotient 0 as the next digit in the result. 
Result so far: 13009.5
Subtracting 0 from 0 leaves us with 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

Moving on to step 9:
66 goes into 0 0 times with a remainder of 0.
The next digit of our result is 0. 
Result so far: 13009.5
Subtract 0 from 0 to get 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

In conclusion, the division gives 13009.5 with a balance of 0.0.