693550 ÷ 3 
The aim is to understand the frequency of 3 in 693550.

Step 1:
3 can be fit into 6 2 times, resulting in a remainder of 0.
Use 2 as the next digit of our solution. 
Result so far: 2.0
Subtract 6 from 6 to get 0.
Include the next digit (9) from the dividend after 0, then repeat: 9 / 3

Step 2:
3 can be fit into 9 3 times, resulting in a remainder of 0.
The number 3 becomes the next digit in our result. 
Result so far: 23.0
Deduct 9 from 9 and we're left with 0.
Take the next digit (3) from the dividend and append it to 0, then repeat: 3 / 3

On to step 3:
The number 3 fits into 3 1 times, leaving a remainder of 0.
Record the quotient 1 as the next digit in the result. 
Result so far: 231.0
Deduct 3 from 3 and we're left with 0.
Bring next digit (5) of the dividend behind the 0 and repeat the process: 5 / 3

Let's proceed to step 4:
When dividing 5 by 3, we get 1 with a remainder of 2.
The number 1 becomes the next digit in our result. 
Result so far: 2311.0
If we subtract 3 from 5, we get 2.
Bring next digit (5) of the dividend behind the 2 and repeat the process: 25 / 3

Step 5:
If we divide 25 by 3, we get 8 and a remainder of 1.
Write down 8 as next digit of the result. 
Result so far: 23118.0
Deduct 24 from 25 and we're left with 1.
Append the next digit (0) from the dividend to 1 and continue with: 10 / 3

Advancing to step 6:
If we divide 10 by 3, we get 3 and a remainder of 1.
The next digit of our result is 3. 
Result so far: 231183.0
If we take 9 away from 10, 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.

On to step 7:
The number 3 fits into 10 3 times, leaving a remainder of 1.
Use 3 as the next digit of our solution. 
Result so far: 231183.3
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.

Moving on to step 8:
The number 3 fits into 10 3 times, leaving a remainder of 1.
Use 3 as the next digit of our solution. 
Result so far: 231183.33
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.

The final outcome is 231183.33, with a leftover of 0.001.