12081507 divided by 518 
The aim is to understand the frequency of 518 in 12081507.

Advancing to step 1:
When dividing 1 by 518, we get 0 with a remainder of 1.
Put 0 as the next digit of the answer. 
Result so far: 0.0
If we take 0 away from 1, we end up with 1.
Take the next digit (2) from the dividend and append it to 1, then repeat: 12 / 518

Advancing to step 2:
518 can be fit into 12 0 times, resulting in a remainder of 12.
Use 0 as the next digit of our solution. 
Result so far: 0.0
If we take 0 away from 12, we end up with 12.
Fetch the next digit (0) from the dividend, attach it to 12 and continue: 120 / 518

Going ahead to step 3:
If we divide 120 by 518, we get 0 and a remainder of 120.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
If we subtract 0 from 120, we get 120.
Fetch the next digit (8) from the dividend, attach it to 120 and continue: 1208 / 518

Moving on to step 4:
518 can be fit into 1208 2 times, resulting in a remainder of 172.
Use 2 as the next digit of our solution. 
Result so far: 2.0
If we take 1036 away from 1208, we end up with 172.
Fetch the next digit (1) from the dividend, attach it to 172 and continue: 1721 / 518

Moving on to step 5:
518 goes into 1721 3 times with a remainder of 167.
The number 3 becomes the next digit in our result. 
Result so far: 23.0
Subtracting 1554 from 1721 leaves us with 167.
Bring next digit (5) of the dividend behind the 167 and repeat the process: 1675 / 518

On to step 6:
If we divide 1675 by 518, we get 3 and a remainder of 121.
The number 3 becomes the next digit in our result. 
Result so far: 233.0
Deduct 1554 from 1675 and we're left with 121.
Include the next digit (0) from the dividend after 121, then repeat: 1210 / 518

On to step 7:
518 can be fit into 1210 2 times, resulting in a remainder of 174.
Put 2 as the next digit of the answer. 
Result so far: 2332.0
Subtract 1036 from 1210 to get 174.
Append the next digit (7) from the dividend to 174 and continue with: 1747 / 518

Let's proceed to step 8:
When dividing 1747 by 518, we get 3 with a remainder of 193.
Write down 3 as next digit of the result. 
Result so far: 23323.0
Deduct 1554 from 1747 and we're left with 193.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1930, and continue the process.

Going ahead to step 9:
If we divide 1930 by 518, we get 3 and a remainder of 376.
Write down 3 as next digit of the result. 
Result so far: 23323.3
If we take 1554 away from 1930, we end up with 376.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3760, and continue the process.

Going ahead to step 10:
If we divide 3760 by 518, we get 7 and a remainder of 134.
Use 7 as the next digit of our solution. 
Result so far: 23323.37
The remainder is 134 after subtracting 3626 from 3760.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1340, and continue the process.

Let's proceed to step 11:
1340 divided by 518 is 2 with a remainder of 304.
Put 2 as the next digit of the answer. 
Result so far: 23323.372
The remainder is 304 after subtracting 1036 from 1340.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3040, and continue the process.

Let's proceed to step 12:
3040 divided by 518 is 5 with a remainder of 450.
Use 5 as the next digit of our solution. 
Result so far: 23323.3725
If we subtract 2590 from 3040, we get 450.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4500, and continue the process.

Advancing to step 13:
4500 divided by 518 is 8 with a remainder of 356.
The number 8 becomes the next digit in our result. 
Result so far: 23323.37258
If we take 4144 away from 4500, we end up with 356.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3560, and continue the process.

Let's proceed to step 14:
518 can be fit into 3560 6 times, resulting in a remainder of 452.
Use 6 as the next digit of our solution. 
Result so far: 23323.372586
Deduct 3108 from 3560 and we're left with 452.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4520, and continue the process.

Moving on to step 15:
518 can be fit into 4520 8 times, resulting in a remainder of 376.
The next digit of our result is 8. 
Result so far: 23323.3725868
Deduct 4144 from 4520 and we're left with 376.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3760, and continue the process.

Let's proceed to step 16:
518 goes into 3760 7 times with a remainder of 134.
The number 7 becomes the next digit in our result. 
Result so far: 23323.37258687
Subtracting 3626 from 3760 leaves us with 134.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1340, and continue the process.

After the division, we end up with 23323.37258687 and a remainder of 1.34e-07.