389031 divided by 90 
We want to figure out the number of times 389031 can be divided by 90.

Moving on to step 1:
When dividing 3 by 90, we get 0 with a remainder of 3.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Deduct 0 from 3 and we're left with 3.
Take the next digit (8) from the dividend and append it to 3, then repeat: 38 / 90

On to step 2:
38 divided by 90 is 0 with a remainder of 38.
Use 0 as the next digit of our solution. 
Result so far: 0.0
If we subtract 0 from 38, we get 38.
Grab the next digit (9) from the dividend, add it to 38, then carry on: 389 / 90

On to step 3:
389 divided by 90 is 4 with a remainder of 29.
Write down 4 as next digit of the result. 
Result so far: 4.0
If we take 360 away from 389, we end up with 29.
Grab the next digit (0) from the dividend, add it to 29, then carry on: 290 / 90

On to step 4:
When dividing 290 by 90, we get 3 with a remainder of 20.
The number 3 becomes the next digit in our result. 
Result so far: 43.0
The remainder is 20 after subtracting 270 from 290.
Take the next digit (3) from the dividend and append it to 20, then repeat: 203 / 90

Let's proceed to step 5:
90 can be fit into 203 2 times, resulting in a remainder of 23.
The next digit of our result is 2. 
Result so far: 432.0
Deduct 180 from 203 and we're left with 23.
Bring next digit (1) of the dividend behind the 23 and repeat the process: 231 / 90

Moving on to step 6:
When dividing 231 by 90, we get 2 with a remainder of 51.
The number 2 becomes the next digit in our result. 
Result so far: 4322.0
If we subtract 180 from 231, we get 51.
Since there are no more digits in the dividend, we add a zero to the remainder making it 510, and continue the process.

Advancing to step 7:
90 can be fit into 510 5 times, resulting in a remainder of 60.
Use 5 as the next digit of our solution. 
Result so far: 4322.5
If we subtract 450 from 510, we get 60.
Since there are no more digits in the dividend, we add a zero to the remainder making it 600, and continue the process.

On to step 8:
600 divided by 90 is 6 with a remainder of 60.
Use 6 as the next digit of our solution. 
Result so far: 4322.56
If we subtract 540 from 600, we get 60.
Since there are no more digits in the dividend, we add a zero to the remainder making it 600, and continue the process.

Step 9:
600 divided by 90 is 6 with a remainder of 60.
Record the quotient 6 as the next digit in the result. 
Result so far: 4322.566
Subtracting 540 from 600 leaves us with 60.
Since there are no more digits in the dividend, we add a zero to the remainder making it 600, and continue the process.

The quotient of the division is 4322.566, and the remainder is 0.006.