We divide 413440 by 90
Let's see how many times 90 fits into 413440.

Advancing to step 1:
When dividing 4 by 90, we get 0 with 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 (1) from the dividend after 4, then repeat: 41 / 90

Moving on to step 2:
90 can be fit into 41 0 times, resulting in a remainder of 41.
Use 0 as the next digit of our solution. 
Result so far: 0.0
If we take 0 away from 41, we end up with 41.
Fetch the next digit (3) from the dividend, attach it to 41 and continue: 413 / 90

Going ahead to step 3:
90 goes into 413 4 times with a remainder of 53.
The number 4 becomes the next digit in our result. 
Result so far: 4.0
Subtract 360 from 413 to get 53.
Fetch the next digit (4) from the dividend, attach it to 53 and continue: 534 / 90

Moving on to step 4:
If we divide 534 by 90, we get 5 and a remainder of 84.
Use 5 as the next digit of our solution. 
Result so far: 45.0
If we take 450 away from 534, we end up with 84.
Include the next digit (4) from the dividend after 84, then repeat: 844 / 90

Advancing to step 5:
844 divided by 90 is 9 with a remainder of 34.
The next digit of our result is 9. 
Result so far: 459.0
Subtract 810 from 844 to get 34.
Fetch the next digit (0) from the dividend, attach it to 34 and continue: 340 / 90

Advancing to step 6:
If we divide 340 by 90, we get 3 and a remainder of 70.
Use 3 as the next digit of our solution. 
Result so far: 4593.0
Deduct 270 from 340 and we're left with 70.
Since there are no more digits in the dividend, we add a zero to the remainder making it 700, and continue the process.

On to step 7:
The number 90 fits into 700 7 times, leaving a remainder of 70.
The number 7 becomes the next digit in our result. 
Result so far: 4593.7
If we subtract 630 from 700, we get 70.
Since there are no more digits in the dividend, we add a zero to the remainder making it 700, and continue the process.

Advancing to step 8:
700 divided by 90 is 7 with a remainder of 70.
The number 7 becomes the next digit in our result. 
Result so far: 4593.77
If we subtract 630 from 700, we get 70.
Since there are no more digits in the dividend, we add a zero to the remainder making it 700, and continue the process.

The final outcome is 4593.77, with a leftover of 0.07.