We look at the division of 687912 by 90 
Our goal is to divide 687912 by 90.

Moving on to step 1:
6 divided by 90 is 0 with a remainder of 6.
The next digit of our result is 0. 
Result so far: 0.0
The remainder is 6 after subtracting 0 from 6.
Fetch the next digit (8) from the dividend, attach it to 6 and continue: 68 / 90

Advancing to step 2:
The number 90 fits into 68 0 times, leaving a remainder of 68.
The next digit of our result is 0. 
Result so far: 0.0
If we take 0 away from 68, we end up with 68.
Bring next digit (7) of the dividend behind the 68 and repeat the process: 687 / 90

Moving on to step 3:
90 can be fit into 687 7 times, resulting in a remainder of 57.
Put 7 as the next digit of the answer. 
Result so far: 7.0
The remainder is 57 after subtracting 630 from 687.
Include the next digit (9) from the dividend after 57, then repeat: 579 / 90

On to step 4:
579 divided by 90 is 6 with a remainder of 39.
The next digit of our result is 6. 
Result so far: 76.0
Deduct 540 from 579 and we're left with 39.
Fetch the next digit (1) from the dividend, attach it to 39 and continue: 391 / 90

On to step 5:
When dividing 391 by 90, we get 4 with a remainder of 31.
Put 4 as the next digit of the answer. 
Result so far: 764.0
The remainder is 31 after subtracting 360 from 391.
Bring next digit (2) of the dividend behind the 31 and repeat the process: 312 / 90

Going ahead to step 6:
The number 90 fits into 312 3 times, leaving a remainder of 42.
Write down 3 as next digit of the result. 
Result so far: 7643.0
Subtracting 270 from 312 leaves us with 42.
Since there are no more digits in the dividend, we add a zero to the remainder making it 420, and continue the process.

Going ahead to step 7:
90 goes into 420 4 times with a remainder of 60.
Write down 4 as next digit of the result. 
Result so far: 7643.4
Subtracting 360 from 420 leaves us 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 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: 7643.46
Subtracting 540 from 600 leaves us 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.

Advancing to step 9:
90 goes into 600 6 times with a remainder of 60.
The next digit of our result is 6. 
Result so far: 7643.466
Deduct 540 from 600 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.

In conclusion, the division gives 7643.466 with a balance of 0.006.