937813 ÷ 3 
The aim is to understand the frequency of 3 in 937813.

Advancing to step 1:
9 divided by 3 is 3 with a remainder of 0.
Write down 3 as next digit of the result. 
Result so far: 3.0
Deduct 9 from 9 and we're left with 0.
Append the next digit (3) from the dividend to 0 and continue with: 3 / 3

On to step 2:
If we divide 3 by 3, we get 1 and a remainder of 0.
The number 1 becomes the next digit in our result. 
Result so far: 31.0
The remainder is 0 after subtracting 3 from 3.
Take the next digit (7) from the dividend and append it to 0, then repeat: 7 / 3

Advancing to step 3:
7 divided by 3 is 2 with a remainder of 1.
Put 2 as the next digit of the answer. 
Result so far: 312.0
The remainder is 1 after subtracting 6 from 7.
Append the next digit (8) from the dividend to 1 and continue with: 18 / 3

Going ahead to step 4:
3 goes into 18 6 times with a remainder of 0.
The next digit of our result is 6. 
Result so far: 3126.0
The remainder is 0 after subtracting 18 from 18.
Fetch the next digit (1) from the dividend, attach it to 0 and continue: 1 / 3

On to step 5:
When dividing 1 by 3, we get 0 with a remainder of 1.
Write down 0 as next digit of the result. 
Result so far: 31260.0
If we take 0 away from 1, we end up with 1.
Take the next digit (3) from the dividend and append it to 1, then repeat: 13 / 3

Step 6:
13 divided by 3 is 4 with a remainder of 1.
Use 4 as the next digit of our solution. 
Result so far: 312604.0
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.

Going ahead to step 7:
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: 312604.3
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:
If we divide 10 by 3, we get 3 and a remainder of 1.
Record the quotient 3 as the next digit in the result. 
Result so far: 312604.33
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 quotient of the division is 312604.33, and the remainder is 0.001.