We divide 515903 by 8
We want to divide 515903 by 8.

Moving on to step 1:
5 divided by 8 is 0 with a remainder of 5.
The next digit of our result is 0. 
Result so far: 0.0
Deduct 0 from 5 and we're left with 5.
Append the next digit (1) from the dividend to 5 and continue with: 51 / 8

Advancing to step 2:
8 can be fit into 51 6 times, resulting in a remainder of 3.
Use 6 as the next digit of our solution. 
Result so far: 6.0
Deduct 48 from 51 and we're left with 3.
Bring next digit (5) of the dividend behind the 3 and repeat the process: 35 / 8

Moving on to step 3:
8 can be fit into 35 4 times, resulting in a remainder of 3.
The next digit of our result is 4. 
Result so far: 64.0
Subtract 32 from 35 to get 3.
Grab the next digit (9) from the dividend, add it to 3, then carry on: 39 / 8

Step 4:
8 can be fit into 39 4 times, resulting in a remainder of 7.
The next digit of our result is 4. 
Result so far: 644.0
Deduct 32 from 39 and we're left with 7.
Bring next digit (0) of the dividend behind the 7 and repeat the process: 70 / 8

Step 5:
70 divided by 8 is 8 with a remainder of 6.
Put 8 as the next digit of the answer. 
Result so far: 6448.0
Subtract 64 from 70 to get 6.
Take the next digit (3) from the dividend and append it to 6, then repeat: 63 / 8

Moving on to step 6:
8 goes into 63 7 times with a remainder of 7.
The number 7 becomes the next digit in our result. 
Result so far: 64487.0
Subtract 56 from 63 to get 7.
Since there are no more digits in the dividend, we add a zero to the remainder making it 70, and continue the process.

Moving on to step 7:
8 can be fit into 70 8 times, resulting in a remainder of 6.
Record the quotient 8 as the next digit in the result. 
Result so far: 64487.8
If we subtract 64 from 70, we get 6.
Since there are no more digits in the dividend, we add a zero to the remainder making it 60, and continue the process.

Going ahead to step 8:
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: 64487.87
If we take 56 away from 60, 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.

On to step 9:
8 can be fit into 40 5 times, resulting in a remainder of 0.
Use 5 as the next digit of our solution. 
Result so far: 64487.875
Subtracting 40 from 40 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.

Let's proceed to step 10:
8 can be fit into 0 0 times, resulting in a remainder of 0.
Use 0 as the next digit of our solution. 
Result so far: 64487.875
The remainder is 0 after subtracting 0 from 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.
Write down 0 as next digit of the result. 
Result so far: 64487.875
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 64487.875 with a remaining 0.0.