We look at the division of 30953353 by 999 
Let's see how many times 999 fits into 30953353.

Advancing to step 1:
999 can be fit into 3 0 times, resulting in a remainder of 3.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Deduct 0 from 3 and we're left with 3.
Include the next digit (0) from the dividend after 3, then repeat: 30 / 999

Going ahead to step 2:
30 divided by 999 is 0 with a remainder of 30.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
If we subtract 0 from 30, we get 30.
Include the next digit (9) from the dividend after 30, then repeat: 309 / 999

Step 3:
If we divide 309 by 999, we get 0 and a remainder of 309.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Deduct 0 from 309 and we're left with 309.
Grab the next digit (5) from the dividend, add it to 309, then carry on: 3095 / 999

Going ahead to step 4:
3095 divided by 999 is 3 with a remainder of 98.
Use 3 as the next digit of our solution. 
Result so far: 3.0
Subtracting 2997 from 3095 leaves us with 98.
Append the next digit (3) from the dividend to 98 and continue with: 983 / 999

Going ahead to step 5:
983 divided by 999 is 0 with a remainder of 983.
The number 0 becomes the next digit in our result. 
Result so far: 30.0
If we take 0 away from 983, we end up with 983.
Append the next digit (3) from the dividend to 983 and continue with: 9833 / 999

Advancing to step 6:
999 can be fit into 9833 9 times, resulting in a remainder of 842.
Use 9 as the next digit of our solution. 
Result so far: 309.0
Subtract 8991 from 9833 to get 842.
Fetch the next digit (5) from the dividend, attach it to 842 and continue: 8425 / 999

Let's proceed to step 7:
The number 999 fits into 8425 8 times, leaving a remainder of 433.
Write down 8 as next digit of the result. 
Result so far: 3098.0
If we take 7992 away from 8425, we end up with 433.
Include the next digit (3) from the dividend after 433, then repeat: 4333 / 999

On to step 8:
4333 divided by 999 is 4 with a remainder of 337.
Put 4 as the next digit of the answer. 
Result so far: 30984.0
Subtracting 3996 from 4333 leaves us with 337.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3370, and continue the process.

On to step 9:
When dividing 3370 by 999, we get 3 with a remainder of 373.
Put 3 as the next digit of the answer. 
Result so far: 30984.3
Subtracting 2997 from 3370 leaves us with 373.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3730, and continue the process.

Let's proceed to step 10:
If we divide 3730 by 999, we get 3 and a remainder of 733.
The next digit of our result is 3. 
Result so far: 30984.33
Subtracting 2997 from 3730 leaves us with 733.
Since there are no more digits in the dividend, we add a zero to the remainder making it 7330, and continue the process.

The quotient of the division is 30984.33, and the remainder is 0.733.