Let's divide 5618509 by 999
Let's see how many times 999 fits into 5618509.

On to step 1:
If we divide 5 by 999, we get 0 and a remainder of 5.
Write down 0 as next digit of the result. 
Result so far: 0.0
If we subtract 0 from 5, we get 5.
Take the next digit (6) from the dividend and append it to 5, then repeat: 56 / 999

On to step 2:
When dividing 56 by 999, we get 0 with a remainder of 56.
Use 0 as the next digit of our solution. 
Result so far: 0.0
If we subtract 0 from 56, we get 56.
Append the next digit (1) from the dividend to 56 and continue with: 561 / 999

Let's proceed to step 3:
999 can be fit into 561 0 times, resulting in a remainder of 561.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Subtracting 0 from 561 leaves us with 561.
Fetch the next digit (8) from the dividend, attach it to 561 and continue: 5618 / 999

Step 4:
If we divide 5618 by 999, we get 5 and a remainder of 623.
The number 5 becomes the next digit in our result. 
Result so far: 5.0
Deduct 4995 from 5618 and we're left with 623.
Grab the next digit (5) from the dividend, add it to 623, then carry on: 6235 / 999

Advancing to step 5:
6235 divided by 999 is 6 with a remainder of 241.
Record the quotient 6 as the next digit in the result. 
Result so far: 56.0
Subtract 5994 from 6235 to get 241.
Bring next digit (0) of the dividend behind the 241 and repeat the process: 2410 / 999

Advancing to step 6:
The number 999 fits into 2410 2 times, leaving a remainder of 412.
Use 2 as the next digit of our solution. 
Result so far: 562.0
If we subtract 1998 from 2410, we get 412.
Include the next digit (9) from the dividend after 412, then repeat: 4129 / 999

Step 7:
999 can be fit into 4129 4 times, resulting in a remainder of 133.
Record the quotient 4 as the next digit in the result. 
Result so far: 5624.0
Subtracting 3996 from 4129 leaves us with 133.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1330, and continue the process.

Step 8:
1330 divided by 999 is 1 with a remainder of 331.
The number 1 becomes the next digit in our result. 
Result so far: 5624.1
Subtract 999 from 1330 to get 331.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3310, and continue the process.

Advancing to step 9:
When dividing 3310 by 999, we get 3 with a remainder of 313.
Record the quotient 3 as the next digit in the result. 
Result so far: 5624.13
Subtracting 2997 from 3310 leaves us with 313.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3130, and continue the process.

Going ahead to step 10:
The number 999 fits into 3130 3 times, leaving a remainder of 133.
Record the quotient 3 as the next digit in the result. 
Result so far: 5624.133
If we take 2997 away from 3130, we end up with 133.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1330, and continue the process.

The final outcome is 5624.133, with a leftover of 0.0133.