668869 ÷ 55 
The aim is to understand the frequency of 55 in 668869.

Let's proceed to step 1:
The number 55 fits into 6 0 times, leaving a remainder of 6.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Subtract 0 from 6 to get 6.
Grab the next digit (6) from the dividend, add it to 6, then carry on: 66 / 55

Moving on to step 2:
55 can be fit into 66 1 times, resulting in a remainder of 11.
Put 1 as the next digit of the answer. 
Result so far: 1.0
If we take 55 away from 66, we end up with 11.
Take the next digit (8) from the dividend and append it to 11, then repeat: 118 / 55

On to step 3:
The number 55 fits into 118 2 times, leaving a remainder of 8.
Record the quotient 2 as the next digit in the result. 
Result so far: 12.0
If we take 110 away from 118, we end up with 8.
Include the next digit (8) from the dividend after 8, then repeat: 88 / 55

Advancing to step 4:
55 can be fit into 88 1 times, resulting in a remainder of 33.
Write down 1 as next digit of the result. 
Result so far: 121.0
Deduct 55 from 88 and we're left with 33.
Append the next digit (6) from the dividend to 33 and continue with: 336 / 55

On to step 5:
The number 55 fits into 336 6 times, leaving a remainder of 6.
Use 6 as the next digit of our solution. 
Result so far: 1216.0
The remainder is 6 after subtracting 330 from 336.
Include the next digit (9) from the dividend after 6, then repeat: 69 / 55

Step 6:
When dividing 69 by 55, we get 1 with a remainder of 14.
Use 1 as the next digit of our solution. 
Result so far: 12161.0
Subtract 55 from 69 to get 14.
Since there are no more digits in the dividend, we add a zero to the remainder making it 140, and continue the process.

On to step 7:
55 can be fit into 140 2 times, resulting in a remainder of 30.
Use 2 as the next digit of our solution. 
Result so far: 12161.2
Subtracting 110 from 140 leaves us with 30.
Since there are no more digits in the dividend, we add a zero to the remainder making it 300, and continue the process.

Going ahead to step 8:
300 divided by 55 is 5 with a remainder of 25.
Use 5 as the next digit of our solution. 
Result so far: 12161.25
Deduct 275 from 300 and we're left with 25.
Since there are no more digits in the dividend, we add a zero to the remainder making it 250, and continue the process.

Step 9:
If we divide 250 by 55, we get 4 and a remainder of 30.
Use 4 as the next digit of our solution. 
Result so far: 12161.254
The remainder is 30 after subtracting 220 from 250.
Since there are no more digits in the dividend, we add a zero to the remainder making it 300, and continue the process.

Advancing to step 10:
The number 55 fits into 300 5 times, leaving a remainder of 25.
Record the quotient 5 as the next digit in the result. 
Result so far: 12161.2545
Subtracting 275 from 300 leaves us with 25.
Since there are no more digits in the dividend, we add a zero to the remainder making it 250, and continue the process.

On to step 11:
If we divide 250 by 55, we get 4 and a remainder of 30.
Use 4 as the next digit of our solution. 
Result so far: 12161.25454
If we take 220 away from 250, we end up with 30.
Since there are no more digits in the dividend, we add a zero to the remainder making it 300, and continue the process.

Moving on to step 12:
55 goes into 300 5 times with a remainder of 25.
The number 5 becomes the next digit in our result. 
Result so far: 12161.254545
Subtract 275 from 300 to get 25.
Since there are no more digits in the dividend, we add a zero to the remainder making it 250, and continue the process.

Moving on to step 13:
55 can be fit into 250 4 times, resulting in a remainder of 30.
Record the quotient 4 as the next digit in the result. 
Result so far: 12161.2545454
Subtract 220 from 250 to get 30.
Since there are no more digits in the dividend, we add a zero to the remainder making it 300, and continue the process.

Advancing to step 14:
If we divide 300 by 55, we get 5 and a remainder of 25.
Record the quotient 5 as the next digit in the result. 
Result so far: 12161.25454545
The remainder is 25 after subtracting 275 from 300.
Since there are no more digits in the dividend, we add a zero to the remainder making it 250, and continue the process.

Our division results in 12161.25454545 with a remaining 2.5e-08.