We divide 621758 by 90
Let's see how many times 90 fits into 621758.

Going ahead to step 1:
6 divided by 90 is 0 with a remainder of 6.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Deduct 0 from 6 and we're left with 6.
Include the next digit (2) from the dividend after 6, then repeat: 62 / 90

Let's proceed to step 2:
62 divided by 90 is 0 with a remainder of 62.
Write down 0 as next digit of the result. 
Result so far: 0.0
Subtract 0 from 62 to get 62.
Grab the next digit (1) from the dividend, add it to 62, then carry on: 621 / 90

On to step 3:
When dividing 621 by 90, we get 6 with a remainder of 81.
The number 6 becomes the next digit in our result. 
Result so far: 6.0
Subtracting 540 from 621 leaves us with 81.
Grab the next digit (7) from the dividend, add it to 81, then carry on: 817 / 90

Step 4:
90 can be fit into 817 9 times, resulting in a remainder of 7.
Write down 9 as next digit of the result. 
Result so far: 69.0
The remainder is 7 after subtracting 810 from 817.
Grab the next digit (5) from the dividend, add it to 7, then carry on: 75 / 90

On to step 5:
If we divide 75 by 90, we get 0 and a remainder of 75.
Record the quotient 0 as the next digit in the result. 
Result so far: 690.0
If we subtract 0 from 75, we get 75.
Take the next digit (8) from the dividend and append it to 75, then repeat: 758 / 90

Let's proceed to step 6:
The number 90 fits into 758 8 times, leaving a remainder of 38.
Put 8 as the next digit of the answer. 
Result so far: 6908.0
Subtract 720 from 758 to get 38.
Since there are no more digits in the dividend, we add a zero to the remainder making it 380, and continue the process.

Going ahead to step 7:
If we divide 380 by 90, we get 4 and a remainder of 20.
Record the quotient 4 as the next digit in the result. 
Result so far: 6908.4
If we subtract 360 from 380, we get 20.
Since there are no more digits in the dividend, we add a zero to the remainder making it 200, and continue the process.

Going ahead to step 8:
When dividing 200 by 90, we get 2 with a remainder of 20.
Put 2 as the next digit of the answer. 
Result so far: 6908.42
The remainder is 20 after subtracting 180 from 200.
Since there are no more digits in the dividend, we add a zero to the remainder making it 200, and continue the process.

Moving on to step 9:
The number 90 fits into 200 2 times, leaving a remainder of 20.
Put 2 as the next digit of the answer. 
Result so far: 6908.422
Subtracting 180 from 200 leaves us with 20.
Since there are no more digits in the dividend, we add a zero to the remainder making it 200, and continue the process.

In conclusion, the division gives 6908.422 with a balance of 0.002.