We divide 603305 by 8
The aim is to understand the frequency of 8 in 603305.

Advancing to step 1:
When dividing 6 by 8, we get 0 with a remainder of 6.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Subtract 0 from 6 to get 6.
Append the next digit (0) from the dividend to 6 and continue with: 60 / 8

Advancing to step 2:
8 can be fit into 60 7 times, resulting in a remainder of 4.
The number 7 becomes the next digit in our result. 
Result so far: 7.0
Subtract 56 from 60 to get 4.
Grab the next digit (3) from the dividend, add it to 4, then carry on: 43 / 8

Let's proceed to step 3:
8 goes into 43 5 times with a remainder of 3.
The number 5 becomes the next digit in our result. 
Result so far: 75.0
Subtracting 40 from 43 leaves us with 3.
Append the next digit (3) from the dividend to 3 and continue with: 33 / 8

On to step 4:
8 can be fit into 33 4 times, resulting in a remainder of 1.
The number 4 becomes the next digit in our result. 
Result so far: 754.0
Deduct 32 from 33 and we're left with 1.
Bring next digit (0) of the dividend behind the 1 and repeat the process: 10 / 8

On to step 5:
When dividing 10 by 8, we get 1 with a remainder of 2.
Write down 1 as next digit of the result. 
Result so far: 7541.0
If we subtract 8 from 10, we get 2.
Include the next digit (5) from the dividend after 2, then repeat: 25 / 8

Step 6:
If we divide 25 by 8, we get 3 and a remainder of 1.
Record the quotient 3 as the next digit in the result. 
Result so far: 75413.0
If we take 24 away from 25, 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.

Let's proceed to step 7:
If we divide 10 by 8, we get 1 and a remainder of 2.
The next digit of our result is 1. 
Result so far: 75413.1
Subtract 8 from 10 to 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 8:
If we divide 20 by 8, we get 2 and a remainder of 4.
Put 2 as the next digit of the answer. 
Result so far: 75413.12
If we subtract 16 from 20, we get 4.
Since there are no more digits in the dividend, we add a zero to the remainder making it 40, and continue the process.

Let's proceed to step 9:
8 goes into 40 5 times with a remainder of 0.
The next digit of our result is 5. 
Result so far: 75413.125
The remainder is 0 after subtracting 40 from 40.
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:
8 goes into 0 0 times with a remainder of 0.
Put 0 as the next digit of the answer. 
Result so far: 75413.125
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.

On to step 11:
If we divide 0 by 8, we get 0 and a remainder of 0.
The number 0 becomes the next digit in our result. 
Result so far: 75413.125
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 75413.125 with a remainder of 0.0.