We're dividing 647445 by 90 
Our goal is to divide 647445 by 90.

Going ahead to step 1:
90 can be fit into 6 0 times, resulting in a remainder of 6.
Write down 0 as next digit of the result. 
Result so far: 0.0
Subtract 0 from 6 to get 6.
Fetch the next digit (4) from the dividend, attach it to 6 and continue: 64 / 90

Advancing to step 2:
64 divided by 90 is 0 with a remainder of 64.
Put 0 as the next digit of the answer. 
Result so far: 0.0
If we subtract 0 from 64, we get 64.
Append the next digit (7) from the dividend to 64 and continue with: 647 / 90

Advancing to step 3:
When dividing 647 by 90, we get 7 with a remainder of 17.
The next digit of our result is 7. 
Result so far: 7.0
If we subtract 630 from 647, we get 17.
Fetch the next digit (4) from the dividend, attach it to 17 and continue: 174 / 90

Let's proceed to step 4:
90 goes into 174 1 times with a remainder of 84.
The number 1 becomes the next digit in our result. 
Result so far: 71.0
If we take 90 away from 174, we end up with 84.
Include the next digit (4) from the dividend after 84, then repeat: 844 / 90

On to step 5:
90 can be fit into 844 9 times, resulting in a remainder of 34.
The next digit of our result is 9. 
Result so far: 719.0
Deduct 810 from 844 and we're left with 34.
Include the next digit (5) from the dividend after 34, then repeat: 345 / 90

Advancing to step 6:
90 can be fit into 345 3 times, resulting in a remainder of 75.
Write down 3 as next digit of the result. 
Result so far: 7193.0
The remainder is 75 after subtracting 270 from 345.
Since there are no more digits in the dividend, we add a zero to the remainder making it 750, and continue the process.

Going ahead to step 7:
When dividing 750 by 90, we get 8 with a remainder of 30.
Record the quotient 8 as the next digit in the result. 
Result so far: 7193.8
The remainder is 30 after subtracting 720 from 750.
Since there are no more digits in the dividend, we add a zero to the remainder making it 300, and continue the process.

Let's proceed to step 8:
If we divide 300 by 90, we get 3 and a remainder of 30.
Use 3 as the next digit of our solution. 
Result so far: 7193.83
Deduct 270 from 300 and we're left with 30.
Since there are no more digits in the dividend, we add a zero to the remainder making it 300, and continue the process.

On to step 9:
If we divide 300 by 90, we get 3 and a remainder of 30.
Write down 3 as next digit of the result. 
Result so far: 7193.833
Deduct 270 from 300 and we're left with 30.
Since there are no more digits in the dividend, we add a zero to the remainder making it 300, and continue the process.

The final result is 7193.833 with a remainder of 0.003.