We're dividing 388624 by 3 
The aim is to understand the frequency of 3 in 388624.

Advancing to step 1:
3 can be fit into 3 1 times, resulting in a remainder of 0.
The next digit of our result is 1. 
Result so far: 1.0
If we take 3 away from 3, we end up with 0.
Bring next digit (8) of the dividend behind the 0 and repeat the process: 8 / 3

Moving on to step 2:
When dividing 8 by 3, we get 2 with a remainder of 2.
Use 2 as the next digit of our solution. 
Result so far: 12.0
The remainder is 2 after subtracting 6 from 8.
Take the next digit (8) from the dividend and append it to 2, then repeat: 28 / 3

Advancing to step 3:
3 goes into 28 9 times with a remainder of 1.
Put 9 as the next digit of the answer. 
Result so far: 129.0
Subtract 27 from 28 to get 1.
Take the next digit (6) from the dividend and append it to 1, then repeat: 16 / 3

Going ahead to step 4:
If we divide 16 by 3, we get 5 and a remainder of 1.
Record the quotient 5 as the next digit in the result. 
Result so far: 1295.0
Subtract 15 from 16 to get 1.
Append the next digit (2) from the dividend to 1 and continue with: 12 / 3

On to step 5:
The number 3 fits into 12 4 times, leaving a remainder of 0.
Use 4 as the next digit of our solution. 
Result so far: 12954.0
If we take 12 away from 12, we end up with 0.
Take the next digit (4) from the dividend and append it to 0, then repeat: 4 / 3

Moving on to step 6:
3 can be fit into 4 1 times, resulting in a remainder of 1.
The next digit of our result is 1. 
Result so far: 129541.0
If we take 3 away from 4, we end up 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.

Advancing to step 7:
3 goes into 10 3 times with a remainder of 1.
The next digit of our result is 3. 
Result so far: 129541.3
Subtract 9 from 10 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.

Step 8:
3 goes into 10 3 times with a remainder of 1.
Use 3 as the next digit of our solution. 
Result so far: 129541.33
If we subtract 9 from 10, we 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.

In conclusion, the division gives 129541.33 with a balance of 0.001.