631642 ÷ 4 
The aim is to understand the frequency of 4 in 631642.

Advancing to step 1:
If we divide 6 by 4, we get 1 and a remainder of 2.
Record the quotient 1 as the next digit in the result. 
Result so far: 1.0
If we subtract 4 from 6, we get 2.
Take the next digit (3) from the dividend and append it to 2, then repeat: 23 / 4

Step 2:
4 goes into 23 5 times with a remainder of 3.
The next digit of our result is 5. 
Result so far: 15.0
Deduct 20 from 23 and we're left with 3.
Append the next digit (1) from the dividend to 3 and continue with: 31 / 4

On to step 3:
4 goes into 31 7 times with a remainder of 3.
The next digit of our result is 7. 
Result so far: 157.0
Subtract 28 from 31 to get 3.
Include the next digit (6) from the dividend after 3, then repeat: 36 / 4

Step 4:
4 can be fit into 36 9 times, resulting in a remainder of 0.
Write down 9 as next digit of the result. 
Result so far: 1579.0
If we take 36 away from 36, we end up with 0.
Take the next digit (4) from the dividend and append it to 0, then repeat: 4 / 4

Step 5:
4 can be fit into 4 1 times, resulting in a remainder of 0.
Record the quotient 1 as the next digit in the result. 
Result so far: 15791.0
If we take 4 away from 4, we end up with 0.
Include the next digit (2) from the dividend after 0, then repeat: 2 / 4

Going ahead to step 6:
4 goes into 2 0 times with a remainder of 2.
Put 0 as the next digit of the answer. 
Result so far: 157910.0
If we subtract 0 from 2, we get 2.
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 7:
If we divide 20 by 4, we get 5 and a remainder of 0.
Use 5 as the next digit of our solution. 
Result so far: 157910.5
Deduct 20 from 20 and we're left with 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

Going ahead to step 8:
4 can be fit into 0 0 times, resulting in a remainder of 0.
Put 0 as the next digit of the answer. 
Result so far: 157910.5
If we subtract 0 from 0, we get 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

Moving on to step 9:
0 divided by 4 is 0 with a remainder of 0.
The number 0 becomes the next digit in our result. 
Result so far: 157910.5
Subtracting 0 from 0 leaves us with 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

The final result is 157910.5 with a remainder of 0.0.