Let's divide 438820 by 4
The aim is to understand the frequency of 4 in 438820.

Let's proceed to step 1:
If we divide 4 by 4, we get 1 and a remainder of 0.
Record the quotient 1 as the next digit in the result. 
Result so far: 1.0
If we subtract 4 from 4, we get 0.
Grab the next digit (3) from the dividend, add it to 0, then carry on: 3 / 4

Advancing to step 2:
The number 4 fits into 3 0 times, leaving a remainder of 3.
The number 0 becomes the next digit in our result. 
Result so far: 10.0
If we subtract 0 from 3, we get 3.
Take the next digit (8) from the dividend and append it to 3, then repeat: 38 / 4

Going ahead to step 3:
38 divided by 4 is 9 with a remainder of 2.
Put 9 as the next digit of the answer. 
Result so far: 109.0
If we subtract 36 from 38, we get 2.
Fetch the next digit (8) from the dividend, attach it to 2 and continue: 28 / 4

Advancing to step 4:
When dividing 28 by 4, we get 7 with a remainder of 0.
The next digit of our result is 7. 
Result so far: 1097.0
If we subtract 28 from 28, we get 0.
Include the next digit (2) from the dividend after 0, then repeat: 2 / 4

Step 5:
If we divide 2 by 4, we get 0 and a remainder of 2.
Write down 0 as next digit of the result. 
Result so far: 10970.0
If we subtract 0 from 2, we get 2.
Append the next digit (0) from the dividend to 2 and continue with: 20 / 4

Moving on to step 6:
4 can be fit into 20 5 times, resulting in a remainder of 0.
Write down 5 as next digit of the result. 
Result so far: 109705.0
Deduct 20 from 20 and we're left 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 7:
If we divide 0 by 4, we get 0 and a remainder of 0.
Put 0 as the next digit of the answer. 
Result so far: 109705.0
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.

Moving on to step 8:
If we divide 0 by 4, we get 0 and a remainder of 0.
The number 0 becomes the next digit in our result. 
Result so far: 109705.0
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 109705.0 and a remainder of 0.0.