903994 divided by 87 
We're looking to find how many times 87 goes into 903994.

On 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
Subtracting 0 from 9 leaves us with 9.
Include the next digit (0) from the dividend after 9, then repeat: 90 / 87

Moving on to step 2:
90 divided by 87 is 1 with a remainder of 3.
Write down 1 as next digit of the result. 
Result so far: 1.0
If we take 87 away from 90, we end up with 3.
Bring next digit (3) of the dividend behind the 3 and repeat the process: 33 / 87

Let's proceed to step 3:
When dividing 33 by 87, we get 0 with a remainder of 33.
Write down 0 as next digit of the result. 
Result so far: 10.0
Deduct 0 from 33 and we're left with 33.
Append the next digit (9) from the dividend to 33 and continue with: 339 / 87

Going ahead to step 4:
The number 87 fits into 339 3 times, leaving a remainder of 78.
Record the quotient 3 as the next digit in the result. 
Result so far: 103.0
If we take 261 away from 339, we end up with 78.
Bring next digit (9) of the dividend behind the 78 and repeat the process: 789 / 87

On to step 5:
87 goes into 789 9 times with a remainder of 6.
The next digit of our result is 9. 
Result so far: 1039.0
The remainder is 6 after subtracting 783 from 789.
Append the next digit (4) from the dividend to 6 and continue with: 64 / 87

On to step 6:
87 can be fit into 64 0 times, resulting in a remainder of 64.
The next digit of our result is 0. 
Result so far: 10390.0
If we subtract 0 from 64, we get 64.
Since there are no more digits in the dividend, we add a zero to the remainder making it 640, and continue the process.

Let's proceed to step 7:
When dividing 640 by 87, we get 7 with a remainder of 31.
Use 7 as the next digit of our solution. 
Result so far: 10390.7
If we subtract 609 from 640, we get 31.
Since there are no more digits in the dividend, we add a zero to the remainder making it 310, and continue the process.

Step 8:
If we divide 310 by 87, we get 3 and a remainder of 49.
Put 3 as the next digit of the answer. 
Result so far: 10390.73
If we take 261 away from 310, we end up with 49.
Since there are no more digits in the dividend, we add a zero to the remainder making it 490, and continue the process.

Going ahead to step 9:
If we divide 490 by 87, we get 5 and a remainder of 55.
Put 5 as the next digit of the answer. 
Result so far: 10390.735
Deduct 435 from 490 and we're left with 55.
Since there are no more digits in the dividend, we add a zero to the remainder making it 550, and continue the process.

On to step 10:
When dividing 550 by 87, we get 6 with a remainder of 28.
The number 6 becomes the next digit in our result. 
Result so far: 10390.7356
Subtracting 522 from 550 leaves us with 28.
Since there are no more digits in the dividend, we add a zero to the remainder making it 280, and continue the process.

Going ahead to step 11:
The number 87 fits into 280 3 times, leaving a remainder of 19.
Write down 3 as next digit of the result. 
Result so far: 10390.73563
If we take 261 away from 280, we end up with 19.
Since there are no more digits in the dividend, we add a zero to the remainder making it 190, and continue the process.

Step 12:
190 divided by 87 is 2 with a remainder of 16.
The next digit of our result is 2. 
Result so far: 10390.735632
Subtracting 174 from 190 leaves us with 16.
Since there are no more digits in the dividend, we add a zero to the remainder making it 160, and continue the process.

Moving on to step 13:
160 divided by 87 is 1 with a remainder of 73.
Record the quotient 1 as the next digit in the result. 
Result so far: 10390.7356321
If we subtract 87 from 160, we get 73.
Since there are no more digits in the dividend, we add a zero to the remainder making it 730, and continue the process.

Step 14:
87 can be fit into 730 8 times, resulting in a remainder of 34.
Write down 8 as next digit of the result. 
Result so far: 10390.73563218
If we take 696 away from 730, we end up with 34.
Since there are no more digits in the dividend, we add a zero to the remainder making it 340, and continue the process.

In conclusion, the division gives 10390.73563218 with a balance of 3.4e-08.