We look at the division of 77539 by 8 
We want to figure out the number of times 77539 can be divided by 8.

Let's proceed to step 1:
The number 8 fits into 7 0 times, leaving a remainder of 7.
Put 0 as the next digit of the answer. 
Result so far: 0.0
If we subtract 0 from 7, we get 7.
Take the next digit (7) from the dividend and append it to 7, then repeat: 77 / 8

On to step 2:
8 can be fit into 77 9 times, resulting in a remainder of 5.
Write down 9 as next digit of the result. 
Result so far: 9.0
Subtract 72 from 77 to get 5.
Fetch the next digit (5) from the dividend, attach it to 5 and continue: 55 / 8

Moving on to step 3:
8 can be fit into 55 6 times, resulting in a remainder of 7.
The number 6 becomes the next digit in our result. 
Result so far: 96.0
If we subtract 48 from 55, we get 7.
Include the next digit (3) from the dividend after 7, then repeat: 73 / 8

Step 4:
8 can be fit into 73 9 times, resulting in a remainder of 1.
Put 9 as the next digit of the answer. 
Result so far: 969.0
Subtract 72 from 73 to get 1.
Include the next digit (9) from the dividend after 1, then repeat: 19 / 8

Step 5:
If we divide 19 by 8, we get 2 and a remainder of 3.
Use 2 as the next digit of our solution. 
Result so far: 9692.0
Subtract 16 from 19 to get 3.
Since there are no more digits in the dividend, we add a zero to the remainder making it 30, and continue the process.

Let's proceed to step 6:
When dividing 30 by 8, we get 3 with a remainder of 6.
The next digit of our result is 3. 
Result so far: 9692.3
The remainder is 6 after subtracting 24 from 30.
Since there are no more digits in the dividend, we add a zero to the remainder making it 60, and continue the process.

On to step 7:
When dividing 60 by 8, we get 7 with a remainder of 4.
The number 7 becomes the next digit in our result. 
Result so far: 9692.37
Subtract 56 from 60 to 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.

Advancing to step 8:
40 divided by 8 is 5 with a remainder of 0.
Record the quotient 5 as the next digit in the result. 
Result so far: 9692.375
Deduct 40 from 40 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.

Let's proceed to step 9:
If we divide 0 by 8, we get 0 and a remainder of 0.
Write down 0 as next digit of the result. 
Result so far: 9692.375
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.

Going ahead to step 10:
The number 8 fits into 0 0 times, leaving a remainder of 0.
The number 0 becomes the next digit in our result. 
Result so far: 9692.375
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 outcome is 9692.375, with a leftover of 0.0.