We're dividing 81771554 by 611 
The aim is to understand the frequency of 611 in 81771554.

Let's proceed to step 1:
8 divided by 611 is 0 with 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.
Take the next digit (1) from the dividend and append it to 8, then repeat: 81 / 611

On to step 2:
611 can be fit into 81 0 times, resulting in a remainder of 81.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
If we subtract 0 from 81, we get 81.
Include the next digit (7) from the dividend after 81, then repeat: 817 / 611

Going ahead to step 3:
The number 611 fits into 817 1 times, leaving a remainder of 206.
Use 1 as the next digit of our solution. 
Result so far: 1.0
Subtract 611 from 817 to get 206.
Append the next digit (7) from the dividend to 206 and continue with: 2067 / 611

Moving on to step 4:
When dividing 2067 by 611, we get 3 with a remainder of 234.
Put 3 as the next digit of the answer. 
Result so far: 13.0
Subtracting 1833 from 2067 leaves us with 234.
Include the next digit (1) from the dividend after 234, then repeat: 2341 / 611

Step 5:
The number 611 fits into 2341 3 times, leaving a remainder of 508.
The number 3 becomes the next digit in our result. 
Result so far: 133.0
Subtracting 1833 from 2341 leaves us with 508.
Append the next digit (5) from the dividend to 508 and continue with: 5085 / 611

Step 6:
611 can be fit into 5085 8 times, resulting in a remainder of 197.
Write down 8 as next digit of the result. 
Result so far: 1338.0
The remainder is 197 after subtracting 4888 from 5085.
Fetch the next digit (5) from the dividend, attach it to 197 and continue: 1975 / 611

On to step 7:
1975 divided by 611 is 3 with a remainder of 142.
Record the quotient 3 as the next digit in the result. 
Result so far: 13383.0
Subtracting 1833 from 1975 leaves us with 142.
Include the next digit (4) from the dividend after 142, then repeat: 1424 / 611

Going ahead to step 8:
The number 611 fits into 1424 2 times, leaving a remainder of 202.
The number 2 becomes the next digit in our result. 
Result so far: 133832.0
Subtracting 1222 from 1424 leaves us with 202.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2020, and continue the process.

Step 9:
2020 divided by 611 is 3 with a remainder of 187.
Use 3 as the next digit of our solution. 
Result so far: 133832.3
Subtract 1833 from 2020 to get 187.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1870, and continue the process.

Step 10:
1870 divided by 611 is 3 with a remainder of 37.
Use 3 as the next digit of our solution. 
Result so far: 133832.33
Deduct 1833 from 1870 and we're left with 37.
Since there are no more digits in the dividend, we add a zero to the remainder making it 370, and continue the process.

After the division, we end up with 133832.33 and a remainder of 0.037.