We look at the division of 99855558 by 512 
The aim is to understand the frequency of 512 in 99855558.

Advancing to step 1:
512 can be fit into 9 0 times, resulting in a remainder of 9.
The next digit of our result is 0. 
Result so far: 0.0
Deduct 0 from 9 and we're left with 9.
Fetch the next digit (9) from the dividend, attach it to 9 and continue: 99 / 512

Moving on to step 2:
99 divided by 512 is 0 with a remainder of 99.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
If we subtract 0 from 99, we get 99.
Append the next digit (8) from the dividend to 99 and continue with: 998 / 512

Advancing to step 3:
512 can be fit into 998 1 times, resulting in a remainder of 486.
The number 1 becomes the next digit in our result. 
Result so far: 1.0
If we subtract 512 from 998, we get 486.
Bring next digit (5) of the dividend behind the 486 and repeat the process: 4865 / 512

On to step 4:
When dividing 4865 by 512, we get 9 with a remainder of 257.
Use 9 as the next digit of our solution. 
Result so far: 19.0
The remainder is 257 after subtracting 4608 from 4865.
Take the next digit (5) from the dividend and append it to 257, then repeat: 2575 / 512

On to step 5:
When dividing 2575 by 512, we get 5 with a remainder of 15.
Use 5 as the next digit of our solution. 
Result so far: 195.0
Subtracting 2560 from 2575 leaves us with 15.
Fetch the next digit (5) from the dividend, attach it to 15 and continue: 155 / 512

Moving on to step 6:
512 goes into 155 0 times with a remainder of 155.
Record the quotient 0 as the next digit in the result. 
Result so far: 1950.0
Subtracting 0 from 155 leaves us with 155.
Grab the next digit (5) from the dividend, add it to 155, then carry on: 1555 / 512

Moving on to step 7:
1555 divided by 512 is 3 with a remainder of 19.
Record the quotient 3 as the next digit in the result. 
Result so far: 19503.0
Subtract 1536 from 1555 to get 19.
Bring next digit (8) of the dividend behind the 19 and repeat the process: 198 / 512

Step 8:
198 divided by 512 is 0 with a remainder of 198.
Put 0 as the next digit of the answer. 
Result so far: 195030.0
Deduct 0 from 198 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.

Let's proceed to step 9:
512 can be fit into 1980 3 times, resulting in a remainder of 444.
The number 3 becomes the next digit in our result. 
Result so far: 195030.3
The remainder is 444 after subtracting 1536 from 1980.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4440, and continue the process.

Going ahead to step 10:
When dividing 4440 by 512, we get 8 with a remainder of 344.
Put 8 as the next digit of the answer. 
Result so far: 195030.38
If we take 4096 away from 4440, we end up with 344.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3440, and continue the process.

On to step 11:
3440 divided by 512 is 6 with a remainder of 368.
The number 6 becomes the next digit in our result. 
Result so far: 195030.386
Subtracting 3072 from 3440 leaves us with 368.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3680, and continue the process.

On to step 12:
3680 divided by 512 is 7 with a remainder of 96.
Put 7 as the next digit of the answer. 
Result so far: 195030.3867
Deduct 3584 from 3680 and we're left with 96.
Since there are no more digits in the dividend, we add a zero to the remainder making it 960, and continue the process.

Going ahead to step 13:
The number 512 fits into 960 1 times, leaving a remainder of 448.
Record the quotient 1 as the next digit in the result. 
Result so far: 195030.38671
Deduct 512 from 960 and we're left with 448.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4480, and continue the process.

Advancing to step 14:
If we divide 4480 by 512, we get 8 and a remainder of 384.
Put 8 as the next digit of the answer. 
Result so far: 195030.386718
Deduct 4096 from 4480 and we're left with 384.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3840, and continue the process.

Advancing to step 15:
3840 divided by 512 is 7 with a remainder of 256.
The number 7 becomes the next digit in our result. 
Result so far: 195030.3867187
If we take 3584 away from 3840, we end up with 256.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2560, and continue the process.

On to step 16:
The number 512 fits into 2560 5 times, leaving a remainder of 0.
Write down 5 as next digit of the result. 
Result so far: 195030.38671875
Subtract 2560 from 2560 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.

The quotient of the division is 195030.38671875, and the remainder is 0.0.