We look at the division of 91584276 by 518 
The aim is to understand the frequency of 518 in 91584276.

Going ahead to step 1:
518 can be fit into 9 0 times, resulting in a remainder of 9.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Subtracting 0 from 9 leaves us with 9.
Take the next digit (1) from the dividend and append it to 9, then repeat: 91 / 518

Advancing to step 2:
The number 518 fits into 91 0 times, leaving a remainder of 91.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Subtracting 0 from 91 leaves us with 91.
Fetch the next digit (5) from the dividend, attach it to 91 and continue: 915 / 518

Step 3:
518 goes into 915 1 times with a remainder of 397.
Put 1 as the next digit of the answer. 
Result so far: 1.0
The remainder is 397 after subtracting 518 from 915.
Include the next digit (8) from the dividend after 397, then repeat: 3978 / 518

Let's proceed to step 4:
3978 divided by 518 is 7 with a remainder of 352.
The number 7 becomes the next digit in our result. 
Result so far: 17.0
Deduct 3626 from 3978 and we're left with 352.
Bring next digit (4) of the dividend behind the 352 and repeat the process: 3524 / 518

Let's proceed to step 5:
518 can be fit into 3524 6 times, resulting in a remainder of 416.
Use 6 as the next digit of our solution. 
Result so far: 176.0
Subtract 3108 from 3524 to get 416.
Take the next digit (2) from the dividend and append it to 416, then repeat: 4162 / 518

Advancing to step 6:
When dividing 4162 by 518, we get 8 with a remainder of 18.
Put 8 as the next digit of the answer. 
Result so far: 1768.0
If we subtract 4144 from 4162, we get 18.
Append the next digit (7) from the dividend to 18 and continue with: 187 / 518

On to step 7:
If we divide 187 by 518, we get 0 and a remainder of 187.
Use 0 as the next digit of our solution. 
Result so far: 17680.0
Deduct 0 from 187 and we're left with 187.
Append the next digit (6) from the dividend to 187 and continue with: 1876 / 518

Moving on to step 8:
If we divide 1876 by 518, we get 3 and a remainder of 322.
Use 3 as the next digit of our solution. 
Result so far: 176803.0
Deduct 1554 from 1876 and we're left with 322.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3220, and continue the process.

Step 9:
When dividing 3220 by 518, we get 6 with a remainder of 112.
Record the quotient 6 as the next digit in the result. 
Result so far: 176803.6
The remainder is 112 after subtracting 3108 from 3220.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1120, and continue the process.

Advancing to step 10:
The number 518 fits into 1120 2 times, leaving a remainder of 84.
Put 2 as the next digit of the answer. 
Result so far: 176803.62
The remainder is 84 after subtracting 1036 from 1120.
Since there are no more digits in the dividend, we add a zero to the remainder making it 840, and continue the process.

On to step 11:
840 divided by 518 is 1 with a remainder of 322.
Record the quotient 1 as the next digit in the result. 
Result so far: 176803.621
If we subtract 518 from 840, we get 322.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3220, and continue the process.

Going ahead to step 12:
If we divide 3220 by 518, we get 6 and a remainder of 112.
Write down 6 as next digit of the result. 
Result so far: 176803.6216
If we subtract 3108 from 3220, we get 112.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1120, and continue the process.

Moving on to step 13:
When dividing 1120 by 518, we get 2 with a remainder of 84.
The number 2 becomes the next digit in our result. 
Result so far: 176803.62162
Deduct 1036 from 1120 and we're left with 84.
Since there are no more digits in the dividend, we add a zero to the remainder making it 840, and continue the process.

On to step 14:
The number 518 fits into 840 1 times, leaving a remainder of 322.
The number 1 becomes the next digit in our result. 
Result so far: 176803.621621
Deduct 518 from 840 and we're left with 322.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3220, and continue the process.

Moving on to step 15:
3220 divided by 518 is 6 with a remainder of 112.
Put 6 as the next digit of the answer. 
Result so far: 176803.6216216
The remainder is 112 after subtracting 3108 from 3220.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1120, and continue the process.

Step 16:
518 can be fit into 1120 2 times, resulting in a remainder of 84.
The number 2 becomes the next digit in our result. 
Result so far: 176803.62162162
Subtracting 1036 from 1120 leaves us with 84.
Since there are no more digits in the dividend, we add a zero to the remainder making it 840, and continue the process.

After the division, we end up with 176803.62162162 and a remainder of 8.4e-08.