Let's divide 781612 by 3
The aim is to understand the frequency of 3 in 781612.

On to step 1:
3 goes into 7 2 times with a remainder of 1.
Write down 2 as next digit of the result. 
Result so far: 2.0
If we subtract 6 from 7, we get 1.
Include the next digit (8) from the dividend after 1, then repeat: 18 / 3

Going ahead to step 2:
If we divide 18 by 3, we get 6 and a remainder of 0.
Write down 6 as next digit of the result. 
Result so far: 26.0
If we take 18 away from 18, we end up with 0.
Bring next digit (1) of the dividend behind the 0 and repeat the process: 1 / 3

Let's proceed to step 3:
3 goes into 1 0 times with a remainder of 1.
Write down 0 as next digit of the result. 
Result so far: 260.0
Subtract 0 from 1 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:
When dividing 16 by 3, we get 5 with a remainder of 1.
Put 5 as the next digit of the answer. 
Result so far: 2605.0
Subtracting 15 from 16 leaves us with 1.
Append the next digit (1) from the dividend to 1 and continue with: 11 / 3

On to step 5:
3 can be fit into 11 3 times, resulting in a remainder of 2.
Write down 3 as next digit of the result. 
Result so far: 26053.0
The remainder is 2 after subtracting 9 from 11.
Take the next digit (2) from the dividend and append it to 2, then repeat: 22 / 3

Moving on to step 6:
The number 3 fits into 22 7 times, leaving a remainder of 1.
The number 7 becomes the next digit in our result. 
Result so far: 260537.0
Deduct 21 from 22 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 7:
3 goes into 10 3 times with a remainder of 1.
Use 3 as the next digit of our solution. 
Result so far: 260537.3
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.

Moving on to step 8:
3 can be fit into 10 3 times, resulting in a remainder of 1.
Record the quotient 3 as the next digit in the result. 
Result so far: 260537.33
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 260537.33 with a balance of 0.001.