We divide 860573 by 4
The aim is to understand the frequency of 4 in 860573.

Advancing to step 1:
If we divide 8 by 4, we get 2 and a remainder of 0.
Record the quotient 2 as the next digit in the result. 
Result so far: 2.0
Deduct 8 from 8 and we're left with 0.
Grab the next digit (6) from the dividend, add it to 0, then carry on: 6 / 4

Moving on to step 2:
The number 4 fits into 6 1 times, leaving a remainder of 2.
Put 1 as the next digit of the answer. 
Result so far: 21.0
The remainder is 2 after subtracting 4 from 6.
Include the next digit (0) from the dividend after 2, then repeat: 20 / 4

On to step 3:
4 goes into 20 5 times with a remainder of 0.
Record the quotient 5 as the next digit in the result. 
Result so far: 215.0
If we take 20 away from 20, we end up with 0.
Take the next digit (5) from the dividend and append it to 0, then repeat: 5 / 4

Going ahead to step 4:
When dividing 5 by 4, we get 1 with a remainder of 1.
The number 1 becomes the next digit in our result. 
Result so far: 2151.0
The remainder is 1 after subtracting 4 from 5.
Bring next digit (7) of the dividend behind the 1 and repeat the process: 17 / 4

Step 5:
4 goes into 17 4 times with a remainder of 1.
Put 4 as the next digit of the answer. 
Result so far: 21514.0
Deduct 16 from 17 and we're left with 1.
Fetch the next digit (3) from the dividend, attach it to 1 and continue: 13 / 4

Step 6:
4 goes into 13 3 times with a remainder of 1.
Use 3 as the next digit of our solution. 
Result so far: 215143.0
Subtracting 12 from 13 leaves us with 1.
Since there are no more digits in the dividend, we add a zero to the remainder making it 10, and continue the process.

Moving on to step 7:
4 goes into 10 2 times with a remainder of 2.
Use 2 as the next digit of our solution. 
Result so far: 215143.2
If we subtract 8 from 10, we get 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 8:
4 goes into 20 5 times with a remainder of 0.
Use 5 as the next digit of our solution. 
Result so far: 215143.25
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 9:
When dividing 0 by 4, we get 0 with a remainder of 0.
Record the quotient 0 as the next digit in the result. 
Result so far: 215143.25
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.

Going ahead to step 10:
When dividing 0 by 4, we get 0 with a remainder of 0.
Write down 0 as next digit of the result. 
Result so far: 215143.25
The remainder is 0 after subtracting 0 from 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

The final result is 215143.25 with a remainder of 0.0.