We're dividing 19089231 by 451 
We want to divide 19089231 by 451.

Advancing to step 1:
1 divided by 451 is 0 with a remainder of 1.
The next digit of our result is 0. 
Result so far: 0.0
Deduct 0 from 1 and we're left with 1.
Take the next digit (9) from the dividend and append it to 1, then repeat: 19 / 451

Let's proceed to step 2:
19 divided by 451 is 0 with a remainder of 19.
Write down 0 as next digit of the result. 
Result so far: 0.0
The remainder is 19 after subtracting 0 from 19.
Append the next digit (0) from the dividend to 19 and continue with: 190 / 451

Step 3:
451 goes into 190 0 times with a remainder of 190.
The next digit of our result is 0. 
Result so far: 0.0
Subtracting 0 from 190 leaves us with 190.
Grab the next digit (8) from the dividend, add it to 190, then carry on: 1908 / 451

Moving on to step 4:
The number 451 fits into 1908 4 times, leaving a remainder of 104.
Record the quotient 4 as the next digit in the result. 
Result so far: 4.0
Subtracting 1804 from 1908 leaves us with 104.
Bring next digit (9) of the dividend behind the 104 and repeat the process: 1049 / 451

Moving on to step 5:
When dividing 1049 by 451, we get 2 with a remainder of 147.
The number 2 becomes the next digit in our result. 
Result so far: 42.0
If we take 902 away from 1049, we end up with 147.
Bring next digit (2) of the dividend behind the 147 and repeat the process: 1472 / 451

Let's proceed to step 6:
451 can be fit into 1472 3 times, resulting in a remainder of 119.
The next digit of our result is 3. 
Result so far: 423.0
The remainder is 119 after subtracting 1353 from 1472.
Grab the next digit (3) from the dividend, add it to 119, then carry on: 1193 / 451

Moving on to step 7:
1193 divided by 451 is 2 with a remainder of 291.
The next digit of our result is 2. 
Result so far: 4232.0
Deduct 902 from 1193 and we're left with 291.
Fetch the next digit (1) from the dividend, attach it to 291 and continue: 2911 / 451

Advancing to step 8:
451 goes into 2911 6 times with a remainder of 205.
The number 6 becomes the next digit in our result. 
Result so far: 42326.0
Subtract 2706 from 2911 to get 205.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2050, and continue the process.

Moving on to step 9:
When dividing 2050 by 451, we get 4 with a remainder of 246.
Use 4 as the next digit of our solution. 
Result so far: 42326.4
The remainder is 246 after subtracting 1804 from 2050.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2460, and continue the process.

Going ahead to step 10:
2460 divided by 451 is 5 with a remainder of 205.
The number 5 becomes the next digit in our result. 
Result so far: 42326.45
Deduct 2255 from 2460 and we're left with 205.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2050, and continue the process.

Advancing to step 11:
If we divide 2050 by 451, we get 4 and a remainder of 246.
Record the quotient 4 as the next digit in the result. 
Result so far: 42326.454
If we take 1804 away from 2050, we end up with 246.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2460, and continue the process.

Step 12:
The number 451 fits into 2460 5 times, leaving a remainder of 205.
The next digit of our result is 5. 
Result so far: 42326.4545
If we take 2255 away from 2460, we end up with 205.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2050, and continue the process.

On to step 13:
451 goes into 2050 4 times with a remainder of 246.
Put 4 as the next digit of the answer. 
Result so far: 42326.45454
Subtracting 1804 from 2050 leaves us with 246.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2460, and continue the process.

Step 14:
The number 451 fits into 2460 5 times, leaving a remainder of 205.
Use 5 as the next digit of our solution. 
Result so far: 42326.454545
Subtracting 2255 from 2460 leaves us with 205.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2050, and continue the process.

Step 15:
The number 451 fits into 2050 4 times, leaving a remainder of 246.
Use 4 as the next digit of our solution. 
Result so far: 42326.4545454
Deduct 1804 from 2050 and we're left with 246.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2460, and continue the process.

Let's proceed to step 16:
451 can be fit into 2460 5 times, resulting in a remainder of 205.
Put 5 as the next digit of the answer. 
Result so far: 42326.45454545
The remainder is 205 after subtracting 2255 from 2460.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2050, and continue the process.

The final outcome is 42326.45454545, with a leftover of 2.05e-07.