We look at the division of 56608304 by 581 
The aim is to understand the frequency of 581 in 56608304.

On to step 1:
When dividing 5 by 581, we get 0 with a remainder of 5.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Subtracting 0 from 5 leaves us with 5.
Include the next digit (6) from the dividend after 5, then repeat: 56 / 581

Step 2:
56 divided by 581 is 0 with a remainder of 56.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Subtracting 0 from 56 leaves us with 56.
Include the next digit (6) from the dividend after 56, then repeat: 566 / 581

Step 3:
The number 581 fits into 566 0 times, leaving a remainder of 566.
Use 0 as the next digit of our solution. 
Result so far: 0.0
If we subtract 0 from 566, we get 566.
Include the next digit (0) from the dividend after 566, then repeat: 5660 / 581

Step 4:
The number 581 fits into 5660 9 times, leaving a remainder of 431.
The number 9 becomes the next digit in our result. 
Result so far: 9.0
The remainder is 431 after subtracting 5229 from 5660.
Fetch the next digit (8) from the dividend, attach it to 431 and continue: 4318 / 581

Advancing to step 5:
If we divide 4318 by 581, we get 7 and a remainder of 251.
The number 7 becomes the next digit in our result. 
Result so far: 97.0
The remainder is 251 after subtracting 4067 from 4318.
Include the next digit (3) from the dividend after 251, then repeat: 2513 / 581

Going ahead to step 6:
The number 581 fits into 2513 4 times, leaving a remainder of 189.
The number 4 becomes the next digit in our result. 
Result so far: 974.0
Deduct 2324 from 2513 and we're left with 189.
Bring next digit (0) of the dividend behind the 189 and repeat the process: 1890 / 581

Step 7:
581 goes into 1890 3 times with a remainder of 147.
Record the quotient 3 as the next digit in the result. 
Result so far: 9743.0
The remainder is 147 after subtracting 1743 from 1890.
Fetch the next digit (4) from the dividend, attach it to 147 and continue: 1474 / 581

On to step 8:
1474 divided by 581 is 2 with a remainder of 312.
The next digit of our result is 2. 
Result so far: 97432.0
The remainder is 312 after subtracting 1162 from 1474.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3120, and continue the process.

Let's proceed to step 9:
When dividing 3120 by 581, we get 5 with a remainder of 215.
Write down 5 as next digit of the result. 
Result so far: 97432.5
If we subtract 2905 from 3120, we get 215.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2150, and continue the process.

Let's proceed to step 10:
When dividing 2150 by 581, we get 3 with a remainder of 407.
Use 3 as the next digit of our solution. 
Result so far: 97432.53
If we subtract 1743 from 2150, we get 407.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4070, and continue the process.

Going ahead to step 11:
If we divide 4070 by 581, we get 7 and a remainder of 3.
The next digit of our result is 7. 
Result so far: 97432.537
The remainder is 3 after subtracting 4067 from 4070.
Since there are no more digits in the dividend, we add a zero to the remainder making it 30, and continue the process.

Let's proceed to step 12:
581 can be fit into 30 0 times, resulting in a remainder of 30.
Write down 0 as next digit of the result. 
Result so far: 97432.537
If we subtract 0 from 30, we get 30.
Since there are no more digits in the dividend, we add a zero to the remainder making it 300, and continue the process.

Let's proceed to step 13:
300 divided by 581 is 0 with a remainder of 300.
Record the quotient 0 as the next digit in the result. 
Result so far: 97432.537
Deduct 0 from 300 and we're left with 300.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3000, and continue the process.

After the division, we end up with 97432.537 and a remainder of 0.0003.