We're dividing 907933 by 3 
The aim is to understand the frequency of 3 in 907933.

Moving on to step 1:
If we divide 9 by 3, we get 3 and a remainder of 0.
Record the quotient 3 as the next digit in the result. 
Result so far: 3.0
If we subtract 9 from 9, we get 0.
Append the next digit (0) from the dividend to 0 and continue with: 0 / 3

Let's proceed to step 2:
When dividing 0 by 3, we get 0 with a remainder of 0.
Put 0 as the next digit of the answer. 
Result so far: 30.0
Subtracting 0 from 0 leaves us with 0.
Append the next digit (7) from the dividend to 0 and continue with: 7 / 3

Advancing to step 3:
If we divide 7 by 3, we get 2 and a remainder of 1.
The next digit of our result is 2. 
Result so far: 302.0
If we take 6 away from 7, we end up with 1.
Bring next digit (9) of the dividend behind the 1 and repeat the process: 19 / 3

Let's proceed to step 4:
If we divide 19 by 3, we get 6 and a remainder of 1.
Record the quotient 6 as the next digit in the result. 
Result so far: 3026.0
Deduct 18 from 19 and we're left with 1.
Append the next digit (3) from the dividend to 1 and continue with: 13 / 3

On to step 5:
If we divide 13 by 3, we get 4 and a remainder of 1.
Record the quotient 4 as the next digit in the result. 
Result so far: 30264.0
The remainder is 1 after subtracting 12 from 13.
Fetch the next digit (3) from the dividend, attach it to 1 and continue: 13 / 3

Moving on to step 6:
When dividing 13 by 3, we get 4 with a remainder of 1.
The number 4 becomes the next digit in our result. 
Result so far: 302644.0
Subtracting 12 from 13 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:
3 goes into 10 3 times with a remainder of 1.
Put 3 as the next digit of the answer. 
Result so far: 302644.3
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.

Step 8:
3 can be fit into 10 3 times, resulting in a remainder of 1.
The next digit of our result is 3. 
Result so far: 302644.33
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.

After the division, we end up with 302644.33 and a remainder of 0.001.