We divide 873907 by 90
Let's see how many times 90 fits into 873907.

Going ahead to step 1:
If we divide 8 by 90, we get 0 and a remainder of 8.
The next digit of our result is 0. 
Result so far: 0.0
Subtracting 0 from 8 leaves us with 8.
Grab the next digit (7) from the dividend, add it to 8, then carry on: 87 / 90

Moving on to step 2:
90 can be fit into 87 0 times, resulting in a remainder of 87.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
If we take 0 away from 87, we end up with 87.
Take the next digit (3) from the dividend and append it to 87, then repeat: 873 / 90

Advancing to step 3:
90 can be fit into 873 9 times, resulting in a remainder of 63.
Write down 9 as next digit of the result. 
Result so far: 9.0
The remainder is 63 after subtracting 810 from 873.
Take the next digit (9) from the dividend and append it to 63, then repeat: 639 / 90

Moving on to step 4:
639 divided by 90 is 7 with a remainder of 9.
Use 7 as the next digit of our solution. 
Result so far: 97.0
If we subtract 630 from 639, we get 9.
Include the next digit (0) from the dividend after 9, then repeat: 90 / 90

Moving on to step 5:
90 goes into 90 1 times with a remainder of 0.
The number 1 becomes the next digit in our result. 
Result so far: 971.0
Subtracting 90 from 90 leaves us with 0.
Fetch the next digit (7) from the dividend, attach it to 0 and continue: 7 / 90

Let's proceed to step 6:
7 divided by 90 is 0 with a remainder of 7.
Put 0 as the next digit of the answer. 
Result so far: 9710.0
Subtract 0 from 7 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:
The number 90 fits into 70 0 times, leaving a remainder of 70.
The next digit of our result is 0. 
Result so far: 9710.0
The remainder is 70 after subtracting 0 from 70.
Since there are no more digits in the dividend, we add a zero to the remainder making it 700, and continue the process.

On to step 8:
The number 90 fits into 700 7 times, leaving a remainder of 70.
Use 7 as the next digit of our solution. 
Result so far: 9710.07
If we subtract 630 from 700, we get 70.
Since there are no more digits in the dividend, we add a zero to the remainder making it 700, and continue the process.

Let's proceed to step 9:
90 goes into 700 7 times with a remainder of 70.
Record the quotient 7 as the next digit in the result. 
Result so far: 9710.077
Subtracting 630 from 700 leaves us with 70.
Since there are no more digits in the dividend, we add a zero to the remainder making it 700, and continue the process.

After the division, we end up with 9710.077 and a remainder of 0.007.