We're dividing 64081 by 4 
The aim is to understand the frequency of 4 in 64081.

Going ahead to step 1:
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: 1.0
The remainder is 2 after subtracting 4 from 6.
Take the next digit (4) from the dividend and append it to 2, then repeat: 24 / 4

Step 2:
4 goes into 24 6 times with a remainder of 0.
The next digit of our result is 6. 
Result so far: 16.0
Deduct 24 from 24 and we're left with 0.
Grab the next digit (0) from the dividend, add it to 0, then carry on: 0 / 4

Moving on to step 3:
If we divide 0 by 4, we get 0 and a remainder of 0.
Use 0 as the next digit of our solution. 
Result so far: 160.0
If we take 0 away from 0, we end up with 0.
Include the next digit (8) from the dividend after 0, then repeat: 8 / 4

Moving on to step 4:
The number 4 fits into 8 2 times, leaving a remainder of 0.
The next digit of our result is 2. 
Result so far: 1602.0
Subtracting 8 from 8 leaves us with 0.
Take the next digit (1) from the dividend and append it to 0, then repeat: 1 / 4

Advancing to step 5:
The number 4 fits into 1 0 times, leaving a remainder of 1.
Put 0 as the next digit of the answer. 
Result so far: 16020.0
If we subtract 0 from 1, we get 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 6:
10 divided by 4 is 2 with a remainder of 2.
Write down 2 as next digit of the result. 
Result so far: 16020.2
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.

On to step 7:
20 divided by 4 is 5 with a remainder of 0.
Write down 5 as next digit of the result. 
Result so far: 16020.25
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.

Let's proceed to step 8:
When dividing 0 by 4, we get 0 with a remainder of 0.
The next digit of our result is 0. 
Result so far: 16020.25
Deduct 0 from 0 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.

Moving on to step 9:
4 goes into 0 0 times with a remainder of 0.
Write down 0 as next digit of the result. 
Result so far: 16020.25
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 outcome is 16020.25, with a leftover of 0.0.