903144 divided by 87 
Let's see how many times 87 fits into 903144.

Let's proceed to step 1:
9 divided by 87 is 0 with a remainder of 9.
The next digit of our result is 0. 
Result so far: 0.0
Subtract 0 from 9 to get 9.
Include the next digit (0) from the dividend after 9, then repeat: 90 / 87

Moving on to step 2:
If we divide 90 by 87, we get 1 and a remainder of 3.
Use 1 as the next digit of our solution. 
Result so far: 1.0
Subtract 87 from 90 to get 3.
Fetch the next digit (3) from the dividend, attach it to 3 and continue: 33 / 87

Advancing to step 3:
87 can be fit into 33 0 times, resulting in a remainder of 33.
Put 0 as the next digit of the answer. 
Result so far: 10.0
If we subtract 0 from 33, we get 33.
Grab the next digit (1) from the dividend, add it to 33, then carry on: 331 / 87

Step 4:
87 goes into 331 3 times with a remainder of 70.
The next digit of our result is 3. 
Result so far: 103.0
If we take 261 away from 331, we end up with 70.
Grab the next digit (4) from the dividend, add it to 70, then carry on: 704 / 87

Let's proceed to step 5:
704 divided by 87 is 8 with a remainder of 8.
Use 8 as the next digit of our solution. 
Result so far: 1038.0
Subtracting 696 from 704 leaves us with 8.
Bring next digit (4) of the dividend behind the 8 and repeat the process: 84 / 87

On to step 6:
84 divided by 87 is 0 with a remainder of 84.
Use 0 as the next digit of our solution. 
Result so far: 10380.0
Subtracting 0 from 84 leaves us with 84.
Since there are no more digits in the dividend, we add a zero to the remainder making it 840, and continue the process.

On to step 7:
87 can be fit into 840 9 times, resulting in a remainder of 57.
Put 9 as the next digit of the answer. 
Result so far: 10380.9
If we take 783 away from 840, we end up with 57.
Since there are no more digits in the dividend, we add a zero to the remainder making it 570, and continue the process.

Going ahead to step 8:
87 goes into 570 6 times with a remainder of 48.
Write down 6 as next digit of the result. 
Result so far: 10380.96
Subtract 522 from 570 to get 48.
Since there are no more digits in the dividend, we add a zero to the remainder making it 480, and continue the process.

Going ahead to step 9:
When dividing 480 by 87, we get 5 with a remainder of 45.
Write down 5 as next digit of the result. 
Result so far: 10380.965
If we take 435 away from 480, we end up with 45.
Since there are no more digits in the dividend, we add a zero to the remainder making it 450, and continue the process.

Moving on to step 10:
87 can be fit into 450 5 times, resulting in a remainder of 15.
Record the quotient 5 as the next digit in the result. 
Result so far: 10380.9655
Subtract 435 from 450 to get 15.
Since there are no more digits in the dividend, we add a zero to the remainder making it 150, and continue the process.

The final result is 10380.9655 with a remainder of 0.00015.