425434 ÷ 90 
We want to divide 425434 by 90.

On to step 1:
The number 90 fits into 4 0 times, leaving a remainder of 4.
The next digit of our result is 0. 
Result so far: 0.0
If we subtract 0 from 4, we get 4.
Include the next digit (2) from the dividend after 4, then repeat: 42 / 90

Advancing to step 2:
When dividing 42 by 90, we get 0 with a remainder of 42.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Subtracting 0 from 42 leaves us with 42.
Take the next digit (5) from the dividend and append it to 42, then repeat: 425 / 90

On to step 3:
425 divided by 90 is 4 with a remainder of 65.
Record the quotient 4 as the next digit in the result. 
Result so far: 4.0
Deduct 360 from 425 and we're left with 65.
Fetch the next digit (4) from the dividend, attach it to 65 and continue: 654 / 90

Step 4:
When dividing 654 by 90, we get 7 with a remainder of 24.
The number 7 becomes the next digit in our result. 
Result so far: 47.0
Subtract 630 from 654 to get 24.
Fetch the next digit (3) from the dividend, attach it to 24 and continue: 243 / 90

Step 5:
If we divide 243 by 90, we get 2 and a remainder of 63.
The next digit of our result is 2. 
Result so far: 472.0
If we subtract 180 from 243, we get 63.
Bring next digit (4) of the dividend behind the 63 and repeat the process: 634 / 90

Advancing to step 6:
90 can be fit into 634 7 times, resulting in a remainder of 4.
Write down 7 as next digit of the result. 
Result so far: 4727.0
Subtracting 630 from 634 leaves us with 4.
Since there are no more digits in the dividend, we add a zero to the remainder making it 40, and continue the process.

Let's proceed to step 7:
If we divide 40 by 90, we get 0 and a remainder of 40.
Use 0 as the next digit of our solution. 
Result so far: 4727.0
Deduct 0 from 40 and we're left with 40.
Since there are no more digits in the dividend, we add a zero to the remainder making it 400, and continue the process.

Going ahead to step 8:
When dividing 400 by 90, we get 4 with a remainder of 40.
Record the quotient 4 as the next digit in the result. 
Result so far: 4727.04
The remainder is 40 after subtracting 360 from 400.
Since there are no more digits in the dividend, we add a zero to the remainder making it 400, and continue the process.

Going ahead to step 9:
The number 90 fits into 400 4 times, leaving a remainder of 40.
The next digit of our result is 4. 
Result so far: 4727.044
Deduct 360 from 400 and we're left with 40.
Since there are no more digits in the dividend, we add a zero to the remainder making it 400, and continue the process.

The quotient of the division is 4727.044, and the remainder is 0.004.