723821 ÷ 8 
The aim is to understand the frequency of 8 in 723821.

Step 1:
8 can be fit into 7 0 times, resulting in a remainder of 7.
Write down 0 as next digit of the result. 
Result so far: 0.0
The remainder is 7 after subtracting 0 from 7.
Include the next digit (2) from the dividend after 7, then repeat: 72 / 8

Moving on to step 2:
The number 8 fits into 72 9 times, leaving a remainder of 0.
The number 9 becomes the next digit in our result. 
Result so far: 9.0
Deduct 72 from 72 and we're left with 0.
Take the next digit (3) from the dividend and append it to 0, then repeat: 3 / 8

Going ahead to step 3:
When dividing 3 by 8, we get 0 with a remainder of 3.
The number 0 becomes the next digit in our result. 
Result so far: 90.0
The remainder is 3 after subtracting 0 from 3.
Grab the next digit (8) from the dividend, add it to 3, then carry on: 38 / 8

Let's proceed to step 4:
If we divide 38 by 8, we get 4 and a remainder of 6.
Write down 4 as next digit of the result. 
Result so far: 904.0
If we take 32 away from 38, we end up with 6.
Include the next digit (2) from the dividend after 6, then repeat: 62 / 8

Step 5:
8 can be fit into 62 7 times, resulting in a remainder of 6.
The next digit of our result is 7. 
Result so far: 9047.0
Subtract 56 from 62 to get 6.
Fetch the next digit (1) from the dividend, attach it to 6 and continue: 61 / 8

Advancing to step 6:
8 can be fit into 61 7 times, resulting in a remainder of 5.
The next digit of our result is 7. 
Result so far: 90477.0
If we take 56 away from 61, we end up with 5.
Since there are no more digits in the dividend, we add a zero to the remainder making it 50, and continue the process.

Going ahead to step 7:
If we divide 50 by 8, we get 6 and a remainder of 2.
The next digit of our result is 6. 
Result so far: 90477.6
If we take 48 away from 50, we end up 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.

Moving on to step 8:
20 divided by 8 is 2 with a remainder of 4.
Put 2 as the next digit of the answer. 
Result so far: 90477.62
The remainder is 4 after subtracting 16 from 20.
Since there are no more digits in the dividend, we add a zero to the remainder making it 40, and continue the process.

Going ahead to step 9:
8 can be fit into 40 5 times, resulting in a remainder of 0.
Write down 5 as next digit of the result. 
Result so far: 90477.625
If we subtract 40 from 40, 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 10:
0 divided by 8 is 0 with a remainder of 0.
Put 0 as the next digit of the answer. 
Result so far: 90477.625
If we take 0 away from 0, we end up 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.

Let's proceed to step 11:
The number 8 fits into 0 0 times, leaving a remainder of 0.
Record the quotient 0 as the next digit in the result. 
Result so far: 90477.625
Subtract 0 from 0 to 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.

The final outcome is 90477.625, with a leftover of 0.0.