We're dividing 393514 by 90 
We want to divide 393514 by 90.

Step 1:
90 goes into 3 0 times with a remainder of 3.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Subtract 0 from 3 to get 3.
Append the next digit (9) from the dividend to 3 and continue with: 39 / 90

Let's proceed to step 2:
When dividing 39 by 90, we get 0 with a remainder of 39.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Subtract 0 from 39 to get 39.
Grab the next digit (3) from the dividend, add it to 39, then carry on: 393 / 90

Advancing to step 3:
393 divided by 90 is 4 with a remainder of 33.
Put 4 as the next digit of the answer. 
Result so far: 4.0
If we subtract 360 from 393, we get 33.
Fetch the next digit (5) from the dividend, attach it to 33 and continue: 335 / 90

Advancing to step 4:
90 can be fit into 335 3 times, resulting in a remainder of 65.
Write down 3 as next digit of the result. 
Result so far: 43.0
Subtract 270 from 335 to get 65.
Fetch the next digit (1) from the dividend, attach it to 65 and continue: 651 / 90

Advancing to step 5:
When dividing 651 by 90, we get 7 with a remainder of 21.
Use 7 as the next digit of our solution. 
Result so far: 437.0
Subtracting 630 from 651 leaves us with 21.
Take the next digit (4) from the dividend and append it to 21, then repeat: 214 / 90

Step 6:
90 goes into 214 2 times with a remainder of 34.
Use 2 as the next digit of our solution. 
Result so far: 4372.0
Subtract 180 from 214 to get 34.
Since there are no more digits in the dividend, we add a zero to the remainder making it 340, and continue the process.

Advancing to step 7:
When dividing 340 by 90, we get 3 with a remainder of 70.
The number 3 becomes the next digit in our result. 
Result so far: 4372.3
If we subtract 270 from 340, 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:
90 can be fit into 700 7 times, resulting in a remainder of 70.
Write down 7 as next digit of the result. 
Result so far: 4372.37
If we take 630 away from 700, we end up 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.

Step 9:
When dividing 700 by 90, we get 7 with a remainder of 70.
The number 7 becomes the next digit in our result. 
Result so far: 4372.377
The remainder is 70 after subtracting 630 from 700.
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 result is 4372.377 with a remainder of 0.007.