We're dividing 450830 by 42 
Let's see how many times 42 fits into 450830.

Let's proceed to step 1:
4 divided by 42 is 0 with a remainder of 4.
Write down 0 as next digit of the result. 
Result so far: 0.0
If we take 0 away from 4, we end up with 4.
Take the next digit (5) from the dividend and append it to 4, then repeat: 45 / 42

Step 2:
If we divide 45 by 42, we get 1 and a remainder of 3.
The number 1 becomes the next digit in our result. 
Result so far: 1.0
If we subtract 42 from 45, we get 3.
Append the next digit (0) from the dividend to 3 and continue with: 30 / 42

Moving on to step 3:
The number 42 fits into 30 0 times, leaving a remainder of 30.
The next digit of our result is 0. 
Result so far: 10.0
Subtract 0 from 30 to get 30.
Append the next digit (8) from the dividend to 30 and continue with: 308 / 42

Step 4:
42 goes into 308 7 times with a remainder of 14.
Put 7 as the next digit of the answer. 
Result so far: 107.0
If we take 294 away from 308, we end up with 14.
Append the next digit (3) from the dividend to 14 and continue with: 143 / 42

Moving on to step 5:
143 divided by 42 is 3 with a remainder of 17.
The next digit of our result is 3. 
Result so far: 1073.0
If we subtract 126 from 143, we get 17.
Fetch the next digit (0) from the dividend, attach it to 17 and continue: 170 / 42

Moving on to step 6:
170 divided by 42 is 4 with a remainder of 2.
Use 4 as the next digit of our solution. 
Result so far: 10734.0
If we take 168 away from 170, 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.

Going ahead to step 7:
42 goes into 20 0 times with a remainder of 20.
The number 0 becomes the next digit in our result. 
Result so far: 10734.0
If we take 0 away from 20, we end up 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.

On to step 8:
200 divided by 42 is 4 with a remainder of 32.
Put 4 as the next digit of the answer. 
Result so far: 10734.04
Subtracting 168 from 200 leaves us with 32.
Since there are no more digits in the dividend, we add a zero to the remainder making it 320, and continue the process.

Let's proceed to step 9:
42 can be fit into 320 7 times, resulting in a remainder of 26.
The number 7 becomes the next digit in our result. 
Result so far: 10734.047
Subtracting 294 from 320 leaves us with 26.
Since there are no more digits in the dividend, we add a zero to the remainder making it 260, and continue the process.

Going ahead to step 10:
42 goes into 260 6 times with a remainder of 8.
Write down 6 as next digit of the result. 
Result so far: 10734.0476
If we take 252 away from 260, we end up with 8.
Since there are no more digits in the dividend, we add a zero to the remainder making it 80, and continue the process.

Step 11:
If we divide 80 by 42, we get 1 and a remainder of 38.
Use 1 as the next digit of our solution. 
Result so far: 10734.04761
If we subtract 42 from 80, we 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.

Advancing to step 12:
If we divide 380 by 42, we get 9 and a remainder of 2.
The next digit of our result is 9. 
Result so far: 10734.047619
Deduct 378 from 380 and we're left 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 13:
The number 42 fits into 20 0 times, leaving a remainder of 20.
Put 0 as the next digit of the answer. 
Result so far: 10734.047619
If we take 0 away from 20, we end up 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.

Advancing to step 14:
42 can be fit into 200 4 times, resulting in a remainder of 32.
Write down 4 as next digit of the result. 
Result so far: 10734.04761904
If we subtract 168 from 200, we get 32.
Since there are no more digits in the dividend, we add a zero to the remainder making it 320, and continue the process.

In conclusion, the division gives 10734.04761904 with a balance of 3.2e-08.