We look at the division of 19421789 by 452 
Let's see how many times 452 fits into 19421789.

Moving on to step 1:
When dividing 1 by 452, we get 0 with a remainder of 1.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Subtracting 0 from 1 leaves us with 1.
Take the next digit (9) from the dividend and append it to 1, then repeat: 19 / 452

Step 2:
If we divide 19 by 452, we get 0 and a remainder of 19.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
If we subtract 0 from 19, we get 19.
Include the next digit (4) from the dividend after 19, then repeat: 194 / 452

Going ahead to step 3:
When dividing 194 by 452, we get 0 with a remainder of 194.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Deduct 0 from 194 and we're left with 194.
Take the next digit (2) from the dividend and append it to 194, then repeat: 1942 / 452

Advancing to step 4:
452 can be fit into 1942 4 times, resulting in a remainder of 134.
Put 4 as the next digit of the answer. 
Result so far: 4.0
Subtracting 1808 from 1942 leaves us with 134.
Include the next digit (1) from the dividend after 134, then repeat: 1341 / 452

On to step 5:
If we divide 1341 by 452, we get 2 and a remainder of 437.
The next digit of our result is 2. 
Result so far: 42.0
Deduct 904 from 1341 and we're left with 437.
Bring next digit (7) of the dividend behind the 437 and repeat the process: 4377 / 452

On to step 6:
452 goes into 4377 9 times with a remainder of 309.
Record the quotient 9 as the next digit in the result. 
Result so far: 429.0
If we take 4068 away from 4377, we end up with 309.
Include the next digit (8) from the dividend after 309, then repeat: 3098 / 452

Let's proceed to step 7:
452 can be fit into 3098 6 times, resulting in a remainder of 386.
Use 6 as the next digit of our solution. 
Result so far: 4296.0
If we take 2712 away from 3098, we end up with 386.
Include the next digit (9) from the dividend after 386, then repeat: 3869 / 452

Advancing to step 8:
When dividing 3869 by 452, we get 8 with a remainder of 253.
The number 8 becomes the next digit in our result. 
Result so far: 42968.0
If we subtract 3616 from 3869, we get 253.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2530, and continue the process.

Step 9:
2530 divided by 452 is 5 with a remainder of 270.
Record the quotient 5 as the next digit in the result. 
Result so far: 42968.5
Deduct 2260 from 2530 and we're left with 270.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2700, and continue the process.

Moving on to step 10:
2700 divided by 452 is 5 with a remainder of 440.
Write down 5 as next digit of the result. 
Result so far: 42968.55
Subtracting 2260 from 2700 leaves us with 440.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4400, and continue the process.

The final outcome is 42968.55, with a leftover of 0.44.