We look at the division of 450699 by 19 
We want to divide 450699 by 19.

Advancing to step 1:
19 goes into 4 0 times with a remainder of 4.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Subtracting 0 from 4 leaves us with 4.
Take the next digit (5) from the dividend and append it to 4, then repeat: 45 / 19

Step 2:
19 can be fit into 45 2 times, resulting in a remainder of 7.
Put 2 as the next digit of the answer. 
Result so far: 2.0
If we take 38 away from 45, we end up with 7.
Fetch the next digit (0) from the dividend, attach it to 7 and continue: 70 / 19

Going ahead to step 3:
The number 19 fits into 70 3 times, leaving a remainder of 13.
The number 3 becomes the next digit in our result. 
Result so far: 23.0
Subtracting 57 from 70 leaves us with 13.
Bring next digit (6) of the dividend behind the 13 and repeat the process: 136 / 19

Step 4:
If we divide 136 by 19, we get 7 and a remainder of 3.
The next digit of our result is 7. 
Result so far: 237.0
Subtract 133 from 136 to get 3.
Include the next digit (9) from the dividend after 3, then repeat: 39 / 19

Moving on to step 5:
39 divided by 19 is 2 with a remainder of 1.
Record the quotient 2 as the next digit in the result. 
Result so far: 2372.0
Deduct 38 from 39 and we're left with 1.
Fetch the next digit (9) from the dividend, attach it to 1 and continue: 19 / 19

Going ahead to step 6:
When dividing 19 by 19, we get 1 with a remainder of 0.
Record the quotient 1 as the next digit in the result. 
Result so far: 23721.0
Subtract 19 from 19 to 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.

Advancing to step 7:
When dividing 0 by 19, we get 0 with a remainder of 0.
Record the quotient 0 as the next digit in the result. 
Result so far: 23721.0
If we subtract 0 from 0, 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.

Advancing to step 8:
When dividing 0 by 19, we get 0 with a remainder of 0.
Record the quotient 0 as the next digit in the result. 
Result so far: 23721.0
Subtract 0 from 0 to 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.

The final result is 23721.0 with a remainder of 0.0.