685805 ÷ 90 
Let's see how many times 90 fits into 685805.

Step 1:
If we divide 6 by 90, we get 0 and a remainder of 6.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Subtract 0 from 6 to get 6.
Bring next digit (8) of the dividend behind the 6 and repeat the process: 68 / 90

Step 2:
68 divided by 90 is 0 with a remainder of 68.
The next digit of our result is 0. 
Result so far: 0.0
Deduct 0 from 68 and we're left with 68.
Take the next digit (5) from the dividend and append it to 68, then repeat: 685 / 90

On to step 3:
If we divide 685 by 90, we get 7 and a remainder of 55.
The next digit of our result is 7. 
Result so far: 7.0
Deduct 630 from 685 and we're left with 55.
Grab the next digit (8) from the dividend, add it to 55, then carry on: 558 / 90

Advancing to step 4:
The number 90 fits into 558 6 times, leaving a remainder of 18.
Put 6 as the next digit of the answer. 
Result so far: 76.0
Subtract 540 from 558 to get 18.
Fetch the next digit (0) from the dividend, attach it to 18 and continue: 180 / 90

Going ahead to step 5:
If we divide 180 by 90, we get 2 and a remainder of 0.
The number 2 becomes the next digit in our result. 
Result so far: 762.0
Deduct 180 from 180 and we're left with 0.
Append the next digit (5) from the dividend to 0 and continue with: 5 / 90

Let's proceed to step 6:
5 divided by 90 is 0 with a remainder of 5.
The number 0 becomes the next digit in our result. 
Result so far: 7620.0
The remainder is 5 after subtracting 0 from 5.
Since there are no more digits in the dividend, we add a zero to the remainder making it 50, and continue the process.

On to step 7:
If we divide 50 by 90, we get 0 and a remainder of 50.
The number 0 becomes the next digit in our result. 
Result so far: 7620.0
If we subtract 0 from 50, we get 50.
Since there are no more digits in the dividend, we add a zero to the remainder making it 500, and continue the process.

On to step 8:
When dividing 500 by 90, we get 5 with a remainder of 50.
Use 5 as the next digit of our solution. 
Result so far: 7620.05
If we subtract 450 from 500, we get 50.
Since there are no more digits in the dividend, we add a zero to the remainder making it 500, and continue the process.

Advancing to step 9:
If we divide 500 by 90, we get 5 and a remainder of 50.
Use 5 as the next digit of our solution. 
Result so far: 7620.055
If we take 450 away from 500, we end up with 50.
Since there are no more digits in the dividend, we add a zero to the remainder making it 500, and continue the process.

The quotient of the division is 7620.055, and the remainder is 0.005.