60866 ÷ 4 
The aim is to understand the frequency of 4 in 60866.

On to step 1:
The number 4 fits into 6 1 times, leaving a remainder of 2.
Use 1 as the next digit of our solution. 
Result so far: 1.0
If we take 4 away from 6, we end up with 2.
Include the next digit (0) from the dividend after 2, then repeat: 20 / 4

On to step 2:
The number 4 fits into 20 5 times, leaving a remainder of 0.
The number 5 becomes the next digit in our result. 
Result so far: 15.0
Subtract 20 from 20 to get 0.
Grab the next digit (8) from the dividend, add it to 0, then carry on: 8 / 4

Step 3:
If we divide 8 by 4, we get 2 and a remainder of 0.
The next digit of our result is 2. 
Result so far: 152.0
If we take 8 away from 8, we end up with 0.
Append the next digit (6) from the dividend to 0 and continue with: 6 / 4

Moving on to step 4:
If we divide 6 by 4, we get 1 and a remainder of 2.
Put 1 as the next digit of the answer. 
Result so far: 1521.0
If we take 4 away from 6, we end up with 2.
Take the next digit (6) from the dividend and append it to 2, then repeat: 26 / 4

Going ahead to step 5:
26 divided by 4 is 6 with a remainder of 2.
Record the quotient 6 as the next digit in the result. 
Result so far: 15216.0
If we subtract 24 from 26, 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.

Step 6:
When dividing 20 by 4, we get 5 with a remainder of 0.
Use 5 as the next digit of our solution. 
Result so far: 15216.5
If we take 20 away from 20, we end up 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.

On to step 7:
The number 4 fits into 0 0 times, leaving a remainder of 0.
The number 0 becomes the next digit in our result. 
Result so far: 15216.5
If we subtract 0 from 0, we 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.

On to step 8:
4 can be fit into 0 0 times, resulting in a remainder of 0.
Put 0 as the next digit of the answer. 
Result so far: 15216.5
If we subtract 0 from 0, we 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.

The final result is 15216.5 with a remainder of 0.0.