Let's divide 574566 by 4
The aim is to understand the frequency of 4 in 574566.

On to step 1:
When dividing 5 by 4, we get 1 with a remainder of 1.
Put 1 as the next digit of the answer. 
Result so far: 1.0
Subtract 4 from 5 to get 1.
Include the next digit (7) from the dividend after 1, then repeat: 17 / 4

Let's proceed to step 2:
If we divide 17 by 4, we get 4 and a remainder of 1.
The number 4 becomes the next digit in our result. 
Result so far: 14.0
The remainder is 1 after subtracting 16 from 17.
Append the next digit (4) from the dividend to 1 and continue with: 14 / 4

Advancing to step 3:
4 can be fit into 14 3 times, resulting in a remainder of 2.
Write down 3 as next digit of the result. 
Result so far: 143.0
The remainder is 2 after subtracting 12 from 14.
Fetch the next digit (5) from the dividend, attach it to 2 and continue: 25 / 4

Moving on to step 4:
4 goes into 25 6 times with a remainder of 1.
Write down 6 as next digit of the result. 
Result so far: 1436.0
Subtracting 24 from 25 leaves us with 1.
Grab the next digit (6) from the dividend, add it to 1, then carry on: 16 / 4

Moving on to step 5:
16 divided by 4 is 4 with a remainder of 0.
The next digit of our result is 4. 
Result so far: 14364.0
Deduct 16 from 16 and we're left with 0.
Append the next digit (6) from the dividend to 0 and continue with: 6 / 4

Going ahead to step 6:
4 can be fit into 6 1 times, resulting in a remainder of 2.
Record the quotient 1 as the next digit in the result. 
Result so far: 143641.0
Subtracting 4 from 6 leaves us with 2.
Since there are no more digits in the dividend, we add a zero to the remainder making it 20, and continue the process.

Advancing to step 7:
20 divided by 4 is 5 with a remainder of 0.
Use 5 as the next digit of our solution. 
Result so far: 143641.5
Subtracting 20 from 20 leaves us with 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

Step 8:
The number 4 fits into 0 0 times, leaving a remainder of 0.
Record the quotient 0 as the next digit in the result. 
Result so far: 143641.5
Subtracting 0 from 0 leaves us with 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

Step 9:
4 can be fit into 0 0 times, resulting in a remainder of 0.
Record the quotient 0 as the next digit in the result. 
Result so far: 143641.5
Subtract 0 from 0 to get 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

After the division, we end up with 143641.5 and a remainder of 0.0.