We look at the division of 521641 by 55 
The aim is to understand the frequency of 55 in 521641.

Advancing to step 1:
When dividing 5 by 55, we get 0 with a remainder of 5.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Subtracting 0 from 5 leaves us with 5.
Include the next digit (2) from the dividend after 5, then repeat: 52 / 55

Going ahead to step 2:
52 divided by 55 is 0 with a remainder of 52.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
If we subtract 0 from 52, we get 52.
Include the next digit (1) from the dividend after 52, then repeat: 521 / 55

Step 3:
521 divided by 55 is 9 with a remainder of 26.
The number 9 becomes the next digit in our result. 
Result so far: 9.0
Subtract 495 from 521 to get 26.
Fetch the next digit (6) from the dividend, attach it to 26 and continue: 266 / 55

Moving on to step 4:
266 divided by 55 is 4 with a remainder of 46.
Put 4 as the next digit of the answer. 
Result so far: 94.0
The remainder is 46 after subtracting 220 from 266.
Append the next digit (4) from the dividend to 46 and continue with: 464 / 55

On to step 5:
When dividing 464 by 55, we get 8 with a remainder of 24.
Record the quotient 8 as the next digit in the result. 
Result so far: 948.0
If we take 440 away from 464, we end up with 24.
Take the next digit (1) from the dividend and append it to 24, then repeat: 241 / 55

Advancing to step 6:
55 goes into 241 4 times with a remainder of 21.
The number 4 becomes the next digit in our result. 
Result so far: 9484.0
Subtracting 220 from 241 leaves us with 21.
Since there are no more digits in the dividend, we add a zero to the remainder making it 210, and continue the process.

Going ahead to step 7:
55 can be fit into 210 3 times, resulting in a remainder of 45.
The number 3 becomes the next digit in our result. 
Result so far: 9484.3
If we subtract 165 from 210, we get 45.
Since there are no more digits in the dividend, we add a zero to the remainder making it 450, and continue the process.

Moving on to step 8:
55 goes into 450 8 times with a remainder of 10.
Write down 8 as next digit of the result. 
Result so far: 9484.38
Subtract 440 from 450 to get 10.
Since there are no more digits in the dividend, we add a zero to the remainder making it 100, and continue the process.

Step 9:
The number 55 fits into 100 1 times, leaving a remainder of 45.
Put 1 as the next digit of the answer. 
Result so far: 9484.381
If we subtract 55 from 100, we get 45.
Since there are no more digits in the dividend, we add a zero to the remainder making it 450, and continue the process.

Advancing to step 10:
55 can be fit into 450 8 times, resulting in a remainder of 10.
The next digit of our result is 8. 
Result so far: 9484.3818
Subtract 440 from 450 to get 10.
Since there are no more digits in the dividend, we add a zero to the remainder making it 100, and continue the process.

Going ahead to step 11:
The number 55 fits into 100 1 times, leaving a remainder of 45.
The number 1 becomes the next digit in our result. 
Result so far: 9484.38181
The remainder is 45 after subtracting 55 from 100.
Since there are no more digits in the dividend, we add a zero to the remainder making it 450, and continue the process.

Step 12:
55 can be fit into 450 8 times, resulting in a remainder of 10.
The number 8 becomes the next digit in our result. 
Result so far: 9484.381818
Subtracting 440 from 450 leaves us with 10.
Since there are no more digits in the dividend, we add a zero to the remainder making it 100, and continue the process.

Going ahead to step 13:
When dividing 100 by 55, we get 1 with a remainder of 45.
Use 1 as the next digit of our solution. 
Result so far: 9484.3818181
Deduct 55 from 100 and we're left with 45.
Since there are no more digits in the dividend, we add a zero to the remainder making it 450, and continue the process.

Going ahead to step 14:
If we divide 450 by 55, we get 8 and a remainder of 10.
The next digit of our result is 8. 
Result so far: 9484.38181818
Subtracting 440 from 450 leaves us with 10.
Since there are no more digits in the dividend, we add a zero to the remainder making it 100, and continue the process.

In conclusion, the division gives 9484.38181818 with a balance of 1e-08.