873512 divided by 15 
Let's see how many times 15 fits into 873512.

On to step 1:
If we divide 8 by 15, we get 0 and a remainder of 8.
Write down 0 as next digit of the result. 
Result so far: 0.0
If we take 0 away from 8, we end up with 8.
Bring next digit (7) of the dividend behind the 8 and repeat the process: 87 / 15

Step 2:
If we divide 87 by 15, we get 5 and a remainder of 12.
The number 5 becomes the next digit in our result. 
Result so far: 5.0
If we subtract 75 from 87, we get 12.
Fetch the next digit (3) from the dividend, attach it to 12 and continue: 123 / 15

On to step 3:
123 divided by 15 is 8 with a remainder of 3.
Record the quotient 8 as the next digit in the result. 
Result so far: 58.0
Subtracting 120 from 123 leaves us with 3.
Append the next digit (5) from the dividend to 3 and continue with: 35 / 15

Step 4:
The number 15 fits into 35 2 times, leaving a remainder of 5.
The number 2 becomes the next digit in our result. 
Result so far: 582.0
If we subtract 30 from 35, we get 5.
Grab the next digit (1) from the dividend, add it to 5, then carry on: 51 / 15

Going ahead to step 5:
When dividing 51 by 15, we get 3 with a remainder of 6.
The next digit of our result is 3. 
Result so far: 5823.0
If we take 45 away from 51, we end up with 6.
Fetch the next digit (2) from the dividend, attach it to 6 and continue: 62 / 15

On to step 6:
15 can be fit into 62 4 times, resulting in a remainder of 2.
Put 4 as the next digit of the answer. 
Result so far: 58234.0
If we take 60 away from 62, we end up 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.

Let's proceed to step 7:
15 goes into 20 1 times with a remainder of 5.
The next digit of our result is 1. 
Result so far: 58234.1
If we take 15 away from 20, we end up with 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 8:
If we divide 50 by 15, we get 3 and a remainder of 5.
Write down 3 as next digit of the result. 
Result so far: 58234.13
Deduct 45 from 50 and we're left with 5.
Since there are no more digits in the dividend, we add a zero to the remainder making it 50, and continue the process.

Let's proceed to step 9:
The number 15 fits into 50 3 times, leaving a remainder of 5.
Write down 3 as next digit of the result. 
Result so far: 58234.133
Subtract 45 from 50 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.

The final outcome is 58234.133, with a leftover of 0.0005.