We look at the division of 798445 by 90 
We want to divide 798445 by 90.

Let's proceed to step 1:
When dividing 7 by 90, we get 0 with a remainder of 7.
Use 0 as the next digit of our solution. 
Result so far: 0.0
If we subtract 0 from 7, we get 7.
Grab the next digit (9) from the dividend, add it to 7, then carry on: 79 / 90

Advancing to step 2:
90 goes into 79 0 times with a remainder of 79.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Deduct 0 from 79 and we're left with 79.
Include the next digit (8) from the dividend after 79, then repeat: 798 / 90

On to step 3:
When dividing 798 by 90, we get 8 with a remainder of 78.
Use 8 as the next digit of our solution. 
Result so far: 8.0
If we subtract 720 from 798, we get 78.
Take the next digit (4) from the dividend and append it to 78, then repeat: 784 / 90

Step 4:
784 divided by 90 is 8 with a remainder of 64.
Record the quotient 8 as the next digit in the result. 
Result so far: 88.0
If we take 720 away from 784, we end up with 64.
Bring next digit (4) of the dividend behind the 64 and repeat the process: 644 / 90

Going ahead to step 5:
When dividing 644 by 90, we get 7 with a remainder of 14.
Use 7 as the next digit of our solution. 
Result so far: 887.0
If we subtract 630 from 644, we get 14.
Fetch the next digit (5) from the dividend, attach it to 14 and continue: 145 / 90

Step 6:
90 goes into 145 1 times with a remainder of 55.
Use 1 as the next digit of our solution. 
Result so far: 8871.0
The remainder is 55 after subtracting 90 from 145.
Since there are no more digits in the dividend, we add a zero to the remainder making it 550, and continue the process.

Step 7:
The number 90 fits into 550 6 times, leaving a remainder of 10.
Write down 6 as next digit of the result. 
Result so far: 8871.6
Deduct 540 from 550 and we're left with 10.
Since there are no more digits in the dividend, we add a zero to the remainder making it 100, and continue the process.

On to step 8:
100 divided by 90 is 1 with a remainder of 10.
The next digit of our result is 1. 
Result so far: 8871.61
Subtracting 90 from 100 leaves us with 10.
Since there are no more digits in the dividend, we add a zero to the remainder making it 100, and continue the process.

Moving on to step 9:
The number 90 fits into 100 1 times, leaving a remainder of 10.
Record the quotient 1 as the next digit in the result. 
Result so far: 8871.611
Subtract 90 from 100 to get 10.
Since there are no more digits in the dividend, we add a zero to the remainder making it 100, and continue the process.

The quotient of the division is 8871.611, and the remainder is 0.001.