We look at the division of 27458723 by 518 
The aim is to understand the frequency of 518 in 27458723.

Let's proceed to step 1:
When dividing 2 by 518, we get 0 with a remainder of 2.
Write down 0 as next digit of the result. 
Result so far: 0.0
If we take 0 away from 2, we end up with 2.
Bring next digit (7) of the dividend behind the 2 and repeat the process: 27 / 518

On to step 2:
If we divide 27 by 518, we get 0 and a remainder of 27.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Subtracting 0 from 27 leaves us with 27.
Append the next digit (4) from the dividend to 27 and continue with: 274 / 518

Advancing to step 3:
274 divided by 518 is 0 with a remainder of 274.
Write down 0 as next digit of the result. 
Result so far: 0.0
If we take 0 away from 274, we end up with 274.
Grab the next digit (5) from the dividend, add it to 274, then carry on: 2745 / 518

Going ahead to step 4:
2745 divided by 518 is 5 with a remainder of 155.
The number 5 becomes the next digit in our result. 
Result so far: 5.0
Subtracting 2590 from 2745 leaves us with 155.
Fetch the next digit (8) from the dividend, attach it to 155 and continue: 1558 / 518

Let's proceed to step 5:
If we divide 1558 by 518, we get 3 and a remainder of 4.
Use 3 as the next digit of our solution. 
Result so far: 53.0
Subtract 1554 from 1558 to get 4.
Take the next digit (7) from the dividend and append it to 4, then repeat: 47 / 518

Advancing to step 6:
47 divided by 518 is 0 with a remainder of 47.
Use 0 as the next digit of our solution. 
Result so far: 530.0
If we take 0 away from 47, we end up with 47.
Grab the next digit (2) from the dividend, add it to 47, then carry on: 472 / 518

Going ahead to step 7:
518 can be fit into 472 0 times, resulting in a remainder of 472.
Write down 0 as next digit of the result. 
Result so far: 5300.0
If we subtract 0 from 472, we get 472.
Fetch the next digit (3) from the dividend, attach it to 472 and continue: 4723 / 518

On to step 8:
4723 divided by 518 is 9 with a remainder of 61.
The number 9 becomes the next digit in our result. 
Result so far: 53009.0
Subtract 4662 from 4723 to get 61.
Since there are no more digits in the dividend, we add a zero to the remainder making it 610, and continue the process.

Advancing to step 9:
610 divided by 518 is 1 with a remainder of 92.
Write down 1 as next digit of the result. 
Result so far: 53009.1
If we subtract 518 from 610, we get 92.
Since there are no more digits in the dividend, we add a zero to the remainder making it 920, and continue the process.

Going ahead to step 10:
518 goes into 920 1 times with a remainder of 402.
Record the quotient 1 as the next digit in the result. 
Result so far: 53009.11
If we subtract 518 from 920, we get 402.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4020, and continue the process.

After the division, we end up with 53009.11 and a remainder of 0.402.