We divide 510204 by 90
Let's see how many times 90 fits into 510204.

On to step 1:
90 goes into 5 0 times with a remainder of 5.
Put 0 as the next digit of the answer. 
Result so far: 0.0
If we take 0 away from 5, we end up with 5.
Take the next digit (1) from the dividend and append it to 5, then repeat: 51 / 90

Advancing to step 2:
90 can be fit into 51 0 times, resulting in a remainder of 51.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Subtract 0 from 51 to get 51.
Fetch the next digit (0) from the dividend, attach it to 51 and continue: 510 / 90

Let's proceed to step 3:
90 can be fit into 510 5 times, resulting in a remainder of 60.
Put 5 as the next digit of the answer. 
Result so far: 5.0
Subtract 450 from 510 to get 60.
Append the next digit (2) from the dividend to 60 and continue with: 602 / 90

Moving on to step 4:
If we divide 602 by 90, we get 6 and a remainder of 62.
Record the quotient 6 as the next digit in the result. 
Result so far: 56.0
Subtracting 540 from 602 leaves us with 62.
Append the next digit (0) from the dividend to 62 and continue with: 620 / 90

On to step 5:
If we divide 620 by 90, we get 6 and a remainder of 80.
The next digit of our result is 6. 
Result so far: 566.0
Subtract 540 from 620 to get 80.
Grab the next digit (4) from the dividend, add it to 80, then carry on: 804 / 90

Let's proceed to step 6:
The number 90 fits into 804 8 times, leaving a remainder of 84.
The next digit of our result is 8. 
Result so far: 5668.0
The remainder is 84 after subtracting 720 from 804.
Since there are no more digits in the dividend, we add a zero to the remainder making it 840, and continue the process.

Let's proceed to step 7:
90 can be fit into 840 9 times, resulting in a remainder of 30.
The number 9 becomes the next digit in our result. 
Result so far: 5668.9
Deduct 810 from 840 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 8:
300 divided by 90 is 3 with a remainder of 30.
Write down 3 as next digit of the result. 
Result so far: 5668.93
Subtracting 270 from 300 leaves us 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.

Moving on to step 9:
90 can be fit into 300 3 times, resulting in a remainder of 30.
Put 3 as the next digit of the answer. 
Result so far: 5668.933
The remainder is 30 after subtracting 270 from 300.
Since there are no more digits in the dividend, we add a zero to the remainder making it 300, and continue the process.

Our division results in 5668.933 with a remaining 0.003.