We look at the division of 873357 by 90 
Let's see how many times 90 fits into 873357.

Going ahead to step 1:
8 divided by 90 is 0 with a remainder of 8.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Subtracting 0 from 8 leaves us with 8.
Fetch the next digit (7) from the dividend, attach it to 8 and continue: 87 / 90

Going ahead to step 2:
When dividing 87 by 90, we get 0 with a remainder of 87.
Put 0 as the next digit of the answer. 
Result so far: 0.0
If we take 0 away from 87, we end up with 87.
Bring next digit (3) of the dividend behind the 87 and repeat the process: 873 / 90

Step 3:
90 goes into 873 9 times with a remainder of 63.
Record the quotient 9 as the next digit in the result. 
Result so far: 9.0
If we subtract 810 from 873, we get 63.
Append the next digit (3) from the dividend to 63 and continue with: 633 / 90

Step 4:
90 can be fit into 633 7 times, resulting in a remainder of 3.
The next digit of our result is 7. 
Result so far: 97.0
The remainder is 3 after subtracting 630 from 633.
Grab the next digit (5) from the dividend, add it to 3, then carry on: 35 / 90

Moving on to step 5:
35 divided by 90 is 0 with a remainder of 35.
Put 0 as the next digit of the answer. 
Result so far: 970.0
Deduct 0 from 35 and we're left with 35.
Take the next digit (7) from the dividend and append it to 35, then repeat: 357 / 90

Step 6:
If we divide 357 by 90, we get 3 and a remainder of 87.
Record the quotient 3 as the next digit in the result. 
Result so far: 9703.0
The remainder is 87 after subtracting 270 from 357.
Since there are no more digits in the dividend, we add a zero to the remainder making it 870, and continue the process.

Going ahead to step 7:
870 divided by 90 is 9 with a remainder of 60.
The number 9 becomes the next digit in our result. 
Result so far: 9703.9
Deduct 810 from 870 and we're left with 60.
Since there are no more digits in the dividend, we add a zero to the remainder making it 600, and continue the process.

Step 8:
The number 90 fits into 600 6 times, leaving a remainder of 60.
The number 6 becomes the next digit in our result. 
Result so far: 9703.96
If we take 540 away from 600, we end up with 60.
Since there are no more digits in the dividend, we add a zero to the remainder making it 600, and continue the process.

Going ahead to step 9:
600 divided by 90 is 6 with a remainder of 60.
Record the quotient 6 as the next digit in the result. 
Result so far: 9703.966
Subtract 540 from 600 to get 60.
Since there are no more digits in the dividend, we add a zero to the remainder making it 600, and continue the process.

The final result is 9703.966 with a remainder of 0.006.