688041 divided by 4 
The aim is to understand the frequency of 4 in 688041.

On to step 1:
When dividing 6 by 4, we get 1 with a remainder of 2.
The next digit of our result is 1. 
Result so far: 1.0
Subtracting 4 from 6 leaves us with 2.
Take the next digit (8) from the dividend and append it to 2, then repeat: 28 / 4

Advancing to step 2:
4 can be fit into 28 7 times, resulting in a remainder of 0.
Put 7 as the next digit of the answer. 
Result so far: 17.0
The remainder is 0 after subtracting 28 from 28.
Bring next digit (8) of the dividend behind the 0 and repeat the process: 8 / 4

Let's proceed to step 3:
If we divide 8 by 4, we get 2 and a remainder of 0.
Record the quotient 2 as the next digit in the result. 
Result so far: 172.0
The remainder is 0 after subtracting 8 from 8.
Include the next digit (0) from the dividend after 0, then repeat: 0 / 4

Advancing to step 4:
4 can be fit into 0 0 times, resulting in a remainder of 0.
The next digit of our result is 0. 
Result so far: 1720.0
Subtracting 0 from 0 leaves us with 0.
Grab the next digit (4) from the dividend, add it to 0, then carry on: 4 / 4

Moving on to step 5:
4 can be fit into 4 1 times, resulting in a remainder of 0.
Use 1 as the next digit of our solution. 
Result so far: 17201.0
If we subtract 4 from 4, we get 0.
Grab the next digit (1) from the dividend, add it to 0, then carry on: 1 / 4

Advancing to step 6:
4 can be fit into 1 0 times, resulting in a remainder of 1.
Put 0 as the next digit of the answer. 
Result so far: 172010.0
Subtracting 0 from 1 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.

On to step 7:
The number 4 fits into 10 2 times, leaving a remainder of 2.
Put 2 as the next digit of the answer. 
Result so far: 172010.2
Deduct 8 from 10 and we're left 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.

Going ahead to step 8:
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: 172010.25
If we subtract 20 from 20, 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.

Step 9:
4 can be fit into 0 0 times, resulting in a remainder of 0.
The next digit of our result is 0. 
Result so far: 172010.25
Deduct 0 from 0 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.

Advancing to step 10:
4 can be fit into 0 0 times, resulting in a remainder of 0.
Write down 0 as next digit of the result. 
Result so far: 172010.25
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.

In conclusion, the division gives 172010.25 with a balance of 0.0.