We're dividing 178216 by 3 
The aim is to understand the frequency of 3 in 178216.

Step 1:
3 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 subtract 0 from 1, we get 1.
Take the next digit (7) from the dividend and append it to 1, then repeat: 17 / 3

Step 2:
3 can be fit into 17 5 times, resulting in a remainder of 2.
Put 5 as the next digit of the answer. 
Result so far: 5.0
Deduct 15 from 17 and we're left with 2.
Bring next digit (8) of the dividend behind the 2 and repeat the process: 28 / 3

On to step 3:
The number 3 fits into 28 9 times, leaving a remainder of 1.
Put 9 as the next digit of the answer. 
Result so far: 59.0
If we take 27 away from 28, we end up with 1.
Bring next digit (2) of the dividend behind the 1 and repeat the process: 12 / 3

Moving on to step 4:
When dividing 12 by 3, we get 4 with a remainder of 0.
The next digit of our result is 4. 
Result so far: 594.0
The remainder is 0 after subtracting 12 from 12.
Append the next digit (1) from the dividend to 0 and continue with: 1 / 3

Going ahead to step 5:
3 can be fit into 1 0 times, resulting in a remainder of 1.
The next digit of our result is 0. 
Result so far: 5940.0
If we take 0 away from 1, we end up with 1.
Grab the next digit (6) from the dividend, add it to 1, then carry on: 16 / 3

Going ahead to step 6:
16 divided by 3 is 5 with a remainder of 1.
Write down 5 as next digit of the result. 
Result so far: 59405.0
Subtracting 15 from 16 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.

Moving on to step 7:
10 divided by 3 is 3 with a remainder of 1.
Write down 3 as next digit of the result. 
Result so far: 59405.3
Deduct 9 from 10 and we're left 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.

Step 8:
If we divide 10 by 3, we get 3 and a remainder of 1.
The number 3 becomes the next digit in our result. 
Result so far: 59405.33
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.

The final outcome is 59405.33, with a leftover of 0.001.