Let's divide 453399 by 4
Our goal is to divide 453399 by 4.

On to step 1:
The number 4 fits into 4 1 times, leaving a remainder of 0.
Put 1 as the next digit of the answer. 
Result so far: 1.0
Deduct 4 from 4 and we're left with 0.
Include the next digit (5) from the dividend after 0, then repeat: 5 / 4

Moving on to step 2:
5 divided by 4 is 1 with a remainder of 1.
Use 1 as the next digit of our solution. 
Result so far: 11.0
Subtract 4 from 5 to get 1.
Fetch the next digit (3) from the dividend, attach it to 1 and continue: 13 / 4

Going ahead to step 3:
If we divide 13 by 4, we get 3 and a remainder of 1.
Write down 3 as next digit of the result. 
Result so far: 113.0
If we take 12 away from 13, we end up with 1.
Take the next digit (3) from the dividend and append it to 1, then repeat: 13 / 4

Advancing to step 4:
The number 4 fits into 13 3 times, leaving a remainder of 1.
Write down 3 as next digit of the result. 
Result so far: 1133.0
Subtracting 12 from 13 leaves us with 1.
Take the next digit (9) from the dividend and append it to 1, then repeat: 19 / 4

Advancing to step 5:
If we divide 19 by 4, we get 4 and a remainder of 3.
Put 4 as the next digit of the answer. 
Result so far: 11334.0
The remainder is 3 after subtracting 16 from 19.
Grab the next digit (9) from the dividend, add it to 3, then carry on: 39 / 4

Going ahead to step 6:
The number 4 fits into 39 9 times, leaving a remainder of 3.
Write down 9 as next digit of the result. 
Result so far: 113349.0
If we take 36 away from 39, we end up with 3.
Since there are no more digits in the dividend, we add a zero to the remainder making it 30, and continue the process.

Moving on to step 7:
4 can be fit into 30 7 times, resulting in a remainder of 2.
Write down 7 as next digit of the result. 
Result so far: 113349.7
If we take 28 away from 30, we end up with 2.
Since there are no more digits in the dividend, we add a zero to the remainder making it 20, and continue the process.

On to step 8:
4 goes into 20 5 times with a remainder of 0.
The number 5 becomes the next digit in our result. 
Result so far: 113349.75
If we subtract 20 from 20, we get 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

Going ahead to step 9:
If we divide 0 by 4, we get 0 and a remainder of 0.
Put 0 as the next digit of the answer. 
Result so far: 113349.75
If we take 0 away from 0, we end up with 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

Moving on to step 10:
4 goes into 0 0 times with a remainder of 0.
Record the quotient 0 as the next digit in the result. 
Result so far: 113349.75
The remainder is 0 after subtracting 0 from 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

Our division results in 113349.75 with a remaining 0.0.