We're dividing 535923 by 3 
The aim is to understand the frequency of 3 in 535923.

Going ahead to step 1:
If we divide 5 by 3, we get 1 and a remainder of 2.
Put 1 as the next digit of the answer. 
Result so far: 1.0
The remainder is 2 after subtracting 3 from 5.
Fetch the next digit (3) from the dividend, attach it to 2 and continue: 23 / 3

Moving on to step 2:
When dividing 23 by 3, we get 7 with a remainder of 2.
Record the quotient 7 as the next digit in the result. 
Result so far: 17.0
Deduct 21 from 23 and we're left with 2.
Include the next digit (5) from the dividend after 2, then repeat: 25 / 3

On to step 3:
3 can be fit into 25 8 times, resulting in a remainder of 1.
Record the quotient 8 as the next digit in the result. 
Result so far: 178.0
Deduct 24 from 25 and we're left with 1.
Bring next digit (9) of the dividend behind the 1 and repeat the process: 19 / 3

Moving on to step 4:
The number 3 fits into 19 6 times, leaving a remainder of 1.
Use 6 as the next digit of our solution. 
Result so far: 1786.0
Subtracting 18 from 19 leaves us with 1.
Append the next digit (2) from the dividend to 1 and continue with: 12 / 3

Let's proceed to step 5:
3 can be fit into 12 4 times, resulting in a remainder of 0.
The number 4 becomes the next digit in our result. 
Result so far: 17864.0
The remainder is 0 after subtracting 12 from 12.
Append the next digit (3) from the dividend to 0 and continue with: 3 / 3

Advancing to step 6:
When dividing 3 by 3, we get 1 with a remainder of 0.
Use 1 as the next digit of our solution. 
Result so far: 178641.0
Deduct 3 from 3 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 7:
0 divided by 3 is 0 with a remainder of 0.
Put 0 as the next digit of the answer. 
Result so far: 178641.0
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.

Advancing to step 8:
3 can be fit into 0 0 times, resulting in a remainder of 0.
The number 0 becomes the next digit in our result. 
Result so far: 178641.0
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.

The final outcome is 178641.0, with a leftover of 0.0.