We're dividing 408002 by 19 
Let's see how many times 19 fits into 408002.

Going ahead to step 1:
4 divided by 19 is 0 with a remainder of 4.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Subtract 0 from 4 to get 4.
Fetch the next digit (0) from the dividend, attach it to 4 and continue: 40 / 19

Moving on to step 2:
19 goes into 40 2 times with a remainder of 2.
Put 2 as the next digit of the answer. 
Result so far: 2.0
Subtracting 38 from 40 leaves us with 2.
Bring next digit (8) of the dividend behind the 2 and repeat the process: 28 / 19

Advancing to step 3:
19 goes into 28 1 times with a remainder of 9.
Use 1 as the next digit of our solution. 
Result so far: 21.0
If we subtract 19 from 28, we get 9.
Append the next digit (0) from the dividend to 9 and continue with: 90 / 19

Going ahead to step 4:
When dividing 90 by 19, we get 4 with a remainder of 14.
Write down 4 as next digit of the result. 
Result so far: 214.0
Subtracting 76 from 90 leaves us with 14.
Take the next digit (0) from the dividend and append it to 14, then repeat: 140 / 19

Moving on to step 5:
19 can be fit into 140 7 times, resulting in a remainder of 7.
Write down 7 as next digit of the result. 
Result so far: 2147.0
The remainder is 7 after subtracting 133 from 140.
Fetch the next digit (2) from the dividend, attach it to 7 and continue: 72 / 19

On to step 6:
72 divided by 19 is 3 with a remainder of 15.
Write down 3 as next digit of the result. 
Result so far: 21473.0
Deduct 57 from 72 and we're left with 15.
Since there are no more digits in the dividend, we add a zero to the remainder making it 150, and continue the process.

Advancing to step 7:
19 can be fit into 150 7 times, resulting in a remainder of 17.
The next digit of our result is 7. 
Result so far: 21473.7
Deduct 133 from 150 and we're left with 17.
Since there are no more digits in the dividend, we add a zero to the remainder making it 170, and continue the process.

Step 8:
19 can be fit into 170 8 times, resulting in a remainder of 18.
The next digit of our result is 8. 
Result so far: 21473.78
Subtracting 152 from 170 leaves us with 18.
Since there are no more digits in the dividend, we add a zero to the remainder making it 180, and continue the process.

On to step 9:
The number 19 fits into 180 9 times, leaving a remainder of 9.
The next digit of our result is 9. 
Result so far: 21473.789
The remainder is 9 after subtracting 171 from 180.
Since there are no more digits in the dividend, we add a zero to the remainder making it 90, and continue the process.

On to step 10:
If we divide 90 by 19, we get 4 and a remainder of 14.
Write down 4 as next digit of the result. 
Result so far: 21473.7894
Deduct 76 from 90 and we're left with 14.
Since there are no more digits in the dividend, we add a zero to the remainder making it 140, and continue the process.

Let's proceed to step 11:
When dividing 140 by 19, we get 7 with a remainder of 7.
The next digit of our result is 7. 
Result so far: 21473.78947
Subtract 133 from 140 to get 7.
Since there are no more digits in the dividend, we add a zero to the remainder making it 70, and continue the process.

Let's proceed to step 12:
19 goes into 70 3 times with a remainder of 13.
Record the quotient 3 as the next digit in the result. 
Result so far: 21473.789473
The remainder is 13 after subtracting 57 from 70.
Since there are no more digits in the dividend, we add a zero to the remainder making it 130, and continue the process.

Moving on to step 13:
19 goes into 130 6 times with a remainder of 16.
Put 6 as the next digit of the answer. 
Result so far: 21473.7894736
If we subtract 114 from 130, we get 16.
Since there are no more digits in the dividend, we add a zero to the remainder making it 160, and continue the process.

On to step 14:
19 goes into 160 8 times with a remainder of 8.
Record the quotient 8 as the next digit in the result. 
Result so far: 21473.78947368
If we subtract 152 from 160, we get 8.
Since there are no more digits in the dividend, we add a zero to the remainder making it 80, and continue the process.

The final result is 21473.78947368 with a remainder of 8e-09.