168772 ÷ 3 
The aim is to understand the frequency of 3 in 168772.

Step 1:
1 divided by 3 is 0 with a remainder of 1.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Deduct 0 from 1 and we're left with 1.
Append the next digit (6) from the dividend to 1 and continue with: 16 / 3

Moving on to step 2:
If we divide 16 by 3, we get 5 and a remainder of 1.
The number 5 becomes the next digit in our result. 
Result so far: 5.0
Subtract 15 from 16 to get 1.
Append the next digit (8) from the dividend to 1 and continue with: 18 / 3

Going ahead to step 3:
3 can be fit into 18 6 times, resulting in a remainder of 0.
Record the quotient 6 as the next digit in the result. 
Result so far: 56.0
Subtracting 18 from 18 leaves us with 0.
Include the next digit (7) from the dividend after 0, then repeat: 7 / 3

Let's proceed to step 4:
The number 3 fits into 7 2 times, leaving a remainder of 1.
The number 2 becomes the next digit in our result. 
Result so far: 562.0
Subtract 6 from 7 to get 1.
Include the next digit (7) from the dividend after 1, then repeat: 17 / 3

Going ahead to step 5:
If we divide 17 by 3, we get 5 and a remainder of 2.
Record the quotient 5 as the next digit in the result. 
Result so far: 5625.0
If we take 15 away from 17, we end up with 2.
Bring next digit (2) of the dividend behind the 2 and repeat the process: 22 / 3

On to step 6:
If we divide 22 by 3, we get 7 and a remainder of 1.
Record the quotient 7 as the next digit in the result. 
Result so far: 56257.0
Subtract 21 from 22 to 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.

Going ahead to step 7:
3 goes into 10 3 times with a remainder of 1.
Put 3 as the next digit of the answer. 
Result so far: 56257.3
Subtracting 9 from 10 leaves us with 1.
Since there are no more digits in the dividend, we add a zero to the remainder making it 10, and continue the process.

Let's proceed to step 8:
10 divided by 3 is 3 with a remainder of 1.
The number 3 becomes the next digit in our result. 
Result so far: 56257.33
Subtracting 9 from 10 leaves us with 1.
Since there are no more digits in the dividend, we add a zero to the remainder making it 10, and continue the process.

After the division, we end up with 56257.33 and a remainder of 0.001.