599774 divided by 3 
The aim is to understand the frequency of 3 in 599774.

Step 1:
3 can be fit into 5 1 times, resulting in a remainder of 2.
Write down 1 as next digit of the result. 
Result so far: 1.0
Subtract 3 from 5 to get 2.
Append the next digit (9) from the dividend to 2 and continue with: 29 / 3

On to step 2:
3 goes into 29 9 times with a remainder of 2.
The number 9 becomes the next digit in our result. 
Result so far: 19.0
If we subtract 27 from 29, we get 2.
Take the next digit (9) from the dividend and append it to 2, then repeat: 29 / 3

On to step 3:
The number 3 fits into 29 9 times, leaving a remainder of 2.
Record the quotient 9 as the next digit in the result. 
Result so far: 199.0
If we take 27 away from 29, we end up with 2.
Grab the next digit (7) from the dividend, add it to 2, then carry on: 27 / 3

Going ahead to step 4:
27 divided by 3 is 9 with a remainder of 0.
Record the quotient 9 as the next digit in the result. 
Result so far: 1999.0
Subtract 27 from 27 to get 0.
Append the next digit (7) from the dividend to 0 and continue with: 7 / 3

Going ahead to step 5:
7 divided by 3 is 2 with a remainder of 1.
The next digit of our result is 2. 
Result so far: 19992.0
Deduct 6 from 7 and we're left with 1.
Grab the next digit (4) from the dividend, add it to 1, then carry on: 14 / 3

Going ahead to step 6:
The number 3 fits into 14 4 times, leaving a remainder of 2.
Write down 4 as next digit of the result. 
Result so far: 199924.0
If we take 12 away from 14, we end up with 2.
Since there are no more digits in the dividend, we add a zero to the remainder making it 20, and continue the process.

Step 7:
3 goes into 20 6 times with a remainder of 2.
Write down 6 as next digit of the result. 
Result so far: 199924.6
The remainder is 2 after subtracting 18 from 20.
Since there are no more digits in the dividend, we add a zero to the remainder making it 20, and continue the process.

Moving on to step 8:
When dividing 20 by 3, we get 6 with a remainder of 2.
Use 6 as the next digit of our solution. 
Result so far: 199924.66
The remainder is 2 after subtracting 18 from 20.
Since there are no more digits in the dividend, we add a zero to the remainder making it 20, and continue the process.

The final outcome is 199924.66, with a leftover of 0.002.