165420 divided by 4 
The aim is to understand the frequency of 4 in 165420.

Advancing to step 1:
4 goes into 1 0 times with a remainder of 1.
Use 0 as the next digit of our solution. 
Result so far: 0.0
If we take 0 away from 1, we end up with 1.
Include the next digit (6) from the dividend after 1, then repeat: 16 / 4

Step 2:
The number 4 fits into 16 4 times, leaving a remainder of 0.
Record the quotient 4 as the next digit in the result. 
Result so far: 4.0
Deduct 16 from 16 and we're left with 0.
Include the next digit (5) from the dividend after 0, then repeat: 5 / 4

Advancing to step 3:
If we divide 5 by 4, we get 1 and a remainder of 1.
Use 1 as the next digit of our solution. 
Result so far: 41.0
If we subtract 4 from 5, we get 1.
Take the next digit (4) from the dividend and append it to 1, then repeat: 14 / 4

Advancing to step 4:
When dividing 14 by 4, we get 3 with a remainder of 2.
The number 3 becomes the next digit in our result. 
Result so far: 413.0
Subtracting 12 from 14 leaves us with 2.
Bring next digit (2) of the dividend behind the 2 and repeat the process: 22 / 4

Advancing to step 5:
4 goes into 22 5 times with a remainder of 2.
Record the quotient 5 as the next digit in the result. 
Result so far: 4135.0
Subtract 20 from 22 to get 2.
Include the next digit (0) from the dividend after 2, then repeat: 20 / 4

Let's proceed to step 6:
20 divided by 4 is 5 with a remainder of 0.
Put 5 as the next digit of the answer. 
Result so far: 41355.0
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.

Let's proceed to step 7:
The number 4 fits into 0 0 times, leaving a remainder of 0.
Put 0 as the next digit of the answer. 
Result so far: 41355.0
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.

Advancing to step 8:
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: 41355.0
If we take 0 away from 0, 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.

After the division, we end up with 41355.0 and a remainder of 0.0.