We divide 603611 by 90
We want to figure out the number of times 603611 can be divided by 90.

Let's proceed to step 1:
When dividing 6 by 90, we get 0 with a remainder of 6.
Put 0 as the next digit of the answer. 
Result so far: 0.0
If we subtract 0 from 6, we get 6.
Fetch the next digit (0) from the dividend, attach it to 6 and continue: 60 / 90

Let's proceed to step 2:
60 divided by 90 is 0 with a remainder of 60.
The next digit of our result is 0. 
Result so far: 0.0
If we take 0 away from 60, we end up with 60.
Grab the next digit (3) from the dividend, add it to 60, then carry on: 603 / 90

Moving on to step 3:
When dividing 603 by 90, we get 6 with a remainder of 63.
The number 6 becomes the next digit in our result. 
Result so far: 6.0
If we take 540 away from 603, we end up with 63.
Fetch the next digit (6) from the dividend, attach it to 63 and continue: 636 / 90

Let's proceed to step 4:
When dividing 636 by 90, we get 7 with a remainder of 6.
Use 7 as the next digit of our solution. 
Result so far: 67.0
If we subtract 630 from 636, we get 6.
Bring next digit (1) of the dividend behind the 6 and repeat the process: 61 / 90

On to step 5:
When dividing 61 by 90, we get 0 with a remainder of 61.
Use 0 as the next digit of our solution. 
Result so far: 670.0
Deduct 0 from 61 and we're left with 61.
Append the next digit (1) from the dividend to 61 and continue with: 611 / 90

Let's proceed to step 6:
When dividing 611 by 90, we get 6 with a remainder of 71.
Use 6 as the next digit of our solution. 
Result so far: 6706.0
Subtracting 540 from 611 leaves us with 71.
Since there are no more digits in the dividend, we add a zero to the remainder making it 710, and continue the process.

Moving on to step 7:
The number 90 fits into 710 7 times, leaving a remainder of 80.
Use 7 as the next digit of our solution. 
Result so far: 6706.7
Deduct 630 from 710 and we're left with 80.
Since there are no more digits in the dividend, we add a zero to the remainder making it 800, and continue the process.

Going ahead to step 8:
The number 90 fits into 800 8 times, leaving a remainder of 80.
Use 8 as the next digit of our solution. 
Result so far: 6706.78
If we subtract 720 from 800, we get 80.
Since there are no more digits in the dividend, we add a zero to the remainder making it 800, and continue the process.

Let's proceed to step 9:
800 divided by 90 is 8 with a remainder of 80.
The number 8 becomes the next digit in our result. 
Result so far: 6706.788
Subtracting 720 from 800 leaves us with 80.
Since there are no more digits in the dividend, we add a zero to the remainder making it 800, and continue the process.

The final outcome is 6706.788, with a leftover of 0.008.