45204812 divided by 815 
The aim is to understand the frequency of 815 in 45204812.

Moving on to step 1:
If we divide 4 by 815, we get 0 and a remainder of 4.
The next digit of our result is 0. 
Result so far: 0.0
Subtracting 0 from 4 leaves us with 4.
Bring next digit (5) of the dividend behind the 4 and repeat the process: 45 / 815

Step 2:
The number 815 fits into 45 0 times, leaving a remainder of 45.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Deduct 0 from 45 and we're left with 45.
Append the next digit (2) from the dividend to 45 and continue with: 452 / 815

Step 3:
If we divide 452 by 815, we get 0 and a remainder of 452.
Put 0 as the next digit of the answer. 
Result so far: 0.0
If we subtract 0 from 452, we get 452.
Grab the next digit (0) from the dividend, add it to 452, then carry on: 4520 / 815

On to step 4:
815 can be fit into 4520 5 times, resulting in a remainder of 445.
The number 5 becomes the next digit in our result. 
Result so far: 5.0
Deduct 4075 from 4520 and we're left with 445.
Append the next digit (4) from the dividend to 445 and continue with: 4454 / 815

Step 5:
When dividing 4454 by 815, we get 5 with a remainder of 379.
Put 5 as the next digit of the answer. 
Result so far: 55.0
Subtracting 4075 from 4454 leaves us with 379.
Bring next digit (8) of the dividend behind the 379 and repeat the process: 3798 / 815

Step 6:
The number 815 fits into 3798 4 times, leaving a remainder of 538.
The number 4 becomes the next digit in our result. 
Result so far: 554.0
Subtracting 3260 from 3798 leaves us with 538.
Bring next digit (1) of the dividend behind the 538 and repeat the process: 5381 / 815

Let's proceed to step 7:
5381 divided by 815 is 6 with a remainder of 491.
Use 6 as the next digit of our solution. 
Result so far: 5546.0
If we take 4890 away from 5381, we end up with 491.
Bring next digit (2) of the dividend behind the 491 and repeat the process: 4912 / 815

Let's proceed to step 8:
If we divide 4912 by 815, we get 6 and a remainder of 22.
Use 6 as the next digit of our solution. 
Result so far: 55466.0
Deduct 4890 from 4912 and we're left with 22.
Since there are no more digits in the dividend, we add a zero to the remainder making it 220, and continue the process.

Let's proceed to step 9:
815 can be fit into 220 0 times, resulting in a remainder of 220.
The next digit of our result is 0. 
Result so far: 55466.0
If we subtract 0 from 220, we get 220.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2200, and continue the process.

Moving on to step 10:
If we divide 2200 by 815, we get 2 and a remainder of 570.
Record the quotient 2 as the next digit in the result. 
Result so far: 55466.02
The remainder is 570 after subtracting 1630 from 2200.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5700, and continue the process.

Let's proceed to step 11:
When dividing 5700 by 815, we get 6 with a remainder of 810.
The next digit of our result is 6. 
Result so far: 55466.026
The remainder is 810 after subtracting 4890 from 5700.
Since there are no more digits in the dividend, we add a zero to the remainder making it 8100, and continue the process.

Advancing to step 12:
When dividing 8100 by 815, we get 9 with a remainder of 765.
Put 9 as the next digit of the answer. 
Result so far: 55466.0269
If we subtract 7335 from 8100, we get 765.
Since there are no more digits in the dividend, we add a zero to the remainder making it 7650, and continue the process.

On to step 13:
The number 815 fits into 7650 9 times, leaving a remainder of 315.
The next digit of our result is 9. 
Result so far: 55466.02699
Subtracting 7335 from 7650 leaves us with 315.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3150, and continue the process.

The final result is 55466.02699 with a remainder of 0.000315.