879573 ÷ 8 
We want to figure out the number of times 879573 can be divided by 8.

Step 1:
The number 8 fits into 8 1 times, leaving a remainder of 0.
Write down 1 as next digit of the result. 
Result so far: 1.0
Subtract 8 from 8 to get 0.
Take the next digit (7) from the dividend and append it to 0, then repeat: 7 / 8

Let's proceed to step 2:
If we divide 7 by 8, we get 0 and a remainder of 7.
Put 0 as the next digit of the answer. 
Result so far: 10.0
Deduct 0 from 7 and we're left with 7.
Bring next digit (9) of the dividend behind the 7 and repeat the process: 79 / 8

Advancing to step 3:
8 can be fit into 79 9 times, resulting in a remainder of 7.
The next digit of our result is 9. 
Result so far: 109.0
Subtract 72 from 79 to get 7.
Fetch the next digit (5) from the dividend, attach it to 7 and continue: 75 / 8

Step 4:
The number 8 fits into 75 9 times, leaving a remainder of 3.
Write down 9 as next digit of the result. 
Result so far: 1099.0
Subtract 72 from 75 to get 3.
Fetch the next digit (7) from the dividend, attach it to 3 and continue: 37 / 8

Step 5:
37 divided by 8 is 4 with a remainder of 5.
The next digit of our result is 4. 
Result so far: 10994.0
If we subtract 32 from 37, we get 5.
Fetch the next digit (3) from the dividend, attach it to 5 and continue: 53 / 8

On to step 6:
8 goes into 53 6 times with a remainder of 5.
The next digit of our result is 6. 
Result so far: 109946.0
Subtract 48 from 53 to get 5.
Since there are no more digits in the dividend, we add a zero to the remainder making it 50, and continue the process.

Step 7:
When dividing 50 by 8, we get 6 with a remainder of 2.
Put 6 as the next digit of the answer. 
Result so far: 109946.6
Subtracting 48 from 50 leaves us 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.

On to step 8:
When dividing 20 by 8, we get 2 with a remainder of 4.
Use 2 as the next digit of our solution. 
Result so far: 109946.62
Deduct 16 from 20 and we're left 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 9:
If we divide 40 by 8, we get 5 and a remainder of 0.
The next digit of our result is 5. 
Result so far: 109946.625
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 10:
The number 8 fits into 0 0 times, leaving a remainder of 0.
Put 0 as the next digit of the answer. 
Result so far: 109946.625
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.

Let's proceed to step 11:
When dividing 0 by 8, we get 0 with a remainder of 0.
The next digit of our result is 0. 
Result so far: 109946.625
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.

The final outcome is 109946.625, with a leftover of 0.0.