Let's divide 173403 by 4
The aim is to understand the frequency of 4 in 173403.

Step 1:
4 goes into 1 0 times with a remainder of 1.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Subtracting 0 from 1 leaves us with 1.
Include the next digit (7) from the dividend after 1, then repeat: 17 / 4

Advancing to step 2:
When dividing 17 by 4, we get 4 with a remainder of 1.
Record the quotient 4 as the next digit in the result. 
Result so far: 4.0
If we subtract 16 from 17, we get 1.
Fetch the next digit (3) from the dividend, attach it to 1 and continue: 13 / 4

Going ahead to step 3:
4 can be fit into 13 3 times, resulting in a remainder of 1.
The number 3 becomes the next digit in our result. 
Result so far: 43.0
If we subtract 12 from 13, 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.
Put 3 as the next digit of the answer. 
Result so far: 433.0
The remainder is 2 after subtracting 12 from 14.
Append the next digit (0) from the dividend to 2 and continue with: 20 / 4

On to step 5:
4 can be fit into 20 5 times, resulting in a remainder of 0.
Record the quotient 5 as the next digit in the result. 
Result so far: 4335.0
Subtract 20 from 20 to get 0.
Bring next digit (3) of the dividend behind the 0 and repeat the process: 3 / 4

Let's proceed to step 6:
If we divide 3 by 4, we get 0 and a remainder of 3.
Put 0 as the next digit of the answer. 
Result so far: 43350.0
The remainder is 3 after subtracting 0 from 3.
Since there are no more digits in the dividend, we add a zero to the remainder making it 30, and continue the process.

On to step 7:
The number 4 fits into 30 7 times, leaving a remainder of 2.
Put 7 as the next digit of the answer. 
Result so far: 43350.7
The remainder is 2 after subtracting 28 from 30.
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 can be fit into 20 5 times, resulting in a remainder of 0.
The next digit of our result is 5. 
Result so far: 43350.75
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.

Let's proceed to step 9:
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: 43350.75
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.

Let's proceed to step 10:
The number 4 fits into 0 0 times, leaving a remainder of 0.
Record the quotient 0 as the next digit in the result. 
Result so far: 43350.75
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 43350.75 with a remainder of 0.0.