We look at the division of 122564 by 8 
We're looking to find how many times 8 goes into 122564.

Step 1:
If we divide 1 by 8, we get 0 and a remainder of 1.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Subtracting 0 from 1 leaves us with 1.
Bring next digit (2) of the dividend behind the 1 and repeat the process: 12 / 8

Moving on to step 2:
The number 8 fits into 12 1 times, leaving a remainder of 4.
Use 1 as the next digit of our solution. 
Result so far: 1.0
Subtracting 8 from 12 leaves us with 4.
Grab the next digit (2) from the dividend, add it to 4, then carry on: 42 / 8

On to step 3:
The number 8 fits into 42 5 times, leaving a remainder of 2.
Put 5 as the next digit of the answer. 
Result so far: 15.0
Subtracting 40 from 42 leaves us with 2.
Grab the next digit (5) from the dividend, add it to 2, then carry on: 25 / 8

Advancing to step 4:
8 can be fit into 25 3 times, resulting in a remainder of 1.
Write down 3 as next digit of the result. 
Result so far: 153.0
If we take 24 away from 25, we end up with 1.
Grab the next digit (6) from the dividend, add it to 1, then carry on: 16 / 8

Advancing to step 5:
8 goes into 16 2 times with a remainder of 0.
The next digit of our result is 2. 
Result so far: 1532.0
Deduct 16 from 16 and we're left with 0.
Append the next digit (4) from the dividend to 0 and continue with: 4 / 8

Moving on to step 6:
8 can be fit into 4 0 times, resulting in a remainder of 4.
Record the quotient 0 as the next digit in the result. 
Result so far: 15320.0
If we take 0 away from 4, we end up with 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 7:
8 goes into 40 5 times with a remainder of 0.
Use 5 as the next digit of our solution. 
Result so far: 15320.5
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.

Advancing to step 8:
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: 15320.5
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.

Step 9:
The number 8 fits into 0 0 times, leaving a remainder of 0.
The next digit of our result is 0. 
Result so far: 15320.5
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.

Our division results in 15320.5 with a remaining 0.0.