We look at the division of 53526091 by 511 
The aim is to understand the frequency of 511 in 53526091.

Moving on to step 1:
When dividing 5 by 511, we get 0 with a remainder of 5.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
If we subtract 0 from 5, we get 5.
Include the next digit (3) from the dividend after 5, then repeat: 53 / 511

Moving on to step 2:
511 goes into 53 0 times with a remainder of 53.
Use 0 as the next digit of our solution. 
Result so far: 0.0
The remainder is 53 after subtracting 0 from 53.
Take the next digit (5) from the dividend and append it to 53, then repeat: 535 / 511

Advancing to step 3:
When dividing 535 by 511, we get 1 with a remainder of 24.
Write down 1 as next digit of the result. 
Result so far: 1.0
Deduct 511 from 535 and we're left with 24.
Bring next digit (2) of the dividend behind the 24 and repeat the process: 242 / 511

Advancing to step 4:
511 can be fit into 242 0 times, resulting in a remainder of 242.
The next digit of our result is 0. 
Result so far: 10.0
Deduct 0 from 242 and we're left with 242.
Fetch the next digit (6) from the dividend, attach it to 242 and continue: 2426 / 511

Moving on to step 5:
511 goes into 2426 4 times with a remainder of 382.
Use 4 as the next digit of our solution. 
Result so far: 104.0
If we subtract 2044 from 2426, we get 382.
Take the next digit (0) from the dividend and append it to 382, then repeat: 3820 / 511

Going ahead to step 6:
511 goes into 3820 7 times with a remainder of 243.
Put 7 as the next digit of the answer. 
Result so far: 1047.0
Deduct 3577 from 3820 and we're left with 243.
Include the next digit (9) from the dividend after 243, then repeat: 2439 / 511

Going ahead to step 7:
511 can be fit into 2439 4 times, resulting in a remainder of 395.
Write down 4 as next digit of the result. 
Result so far: 10474.0
If we take 2044 away from 2439, we end up with 395.
Append the next digit (1) from the dividend to 395 and continue with: 3951 / 511

Let's proceed to step 8:
If we divide 3951 by 511, we get 7 and a remainder of 374.
Write down 7 as next digit of the result. 
Result so far: 104747.0
If we subtract 3577 from 3951, we get 374.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3740, and continue the process.

Advancing to step 9:
3740 divided by 511 is 7 with a remainder of 163.
Write down 7 as next digit of the result. 
Result so far: 104747.7
The remainder is 163 after subtracting 3577 from 3740.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1630, and continue the process.

On to step 10:
The number 511 fits into 1630 3 times, leaving a remainder of 97.
The number 3 becomes the next digit in our result. 
Result so far: 104747.73
If we take 1533 away from 1630, we end up with 97.
Since there are no more digits in the dividend, we add a zero to the remainder making it 970, and continue the process.

Moving on to step 11:
511 goes into 970 1 times with a remainder of 459.
The number 1 becomes the next digit in our result. 
Result so far: 104747.731
Subtracting 511 from 970 leaves us with 459.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4590, and continue the process.

Step 12:
4590 divided by 511 is 8 with a remainder of 502.
Use 8 as the next digit of our solution. 
Result so far: 104747.7318
The remainder is 502 after subtracting 4088 from 4590.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5020, and continue the process.

On to step 13:
If we divide 5020 by 511, we get 9 and a remainder of 421.
Use 9 as the next digit of our solution. 
Result so far: 104747.73189
If we subtract 4599 from 5020, we get 421.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4210, and continue the process.

Advancing to step 14:
4210 divided by 511 is 8 with a remainder of 122.
Put 8 as the next digit of the answer. 
Result so far: 104747.731898
Deduct 4088 from 4210 and we're left with 122.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1220, and continue the process.

On to step 15:
511 goes into 1220 2 times with a remainder of 198.
The number 2 becomes the next digit in our result. 
Result so far: 104747.7318982
Deduct 1022 from 1220 and we're left with 198.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1980, and continue the process.

Step 16:
If we divide 1980 by 511, we get 3 and a remainder of 447.
Put 3 as the next digit of the answer. 
Result so far: 104747.73189823
If we take 1533 away from 1980, we end up with 447.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4470, and continue the process.

In conclusion, the division gives 104747.73189823 with a balance of 4.47e-07.