399339 divided by 19 
Let's see how many times 19 fits into 399339.

On to step 1:
19 can be fit into 3 0 times, resulting in a remainder of 3.
Put 0 as the next digit of the answer. 
Result so far: 0.0
The remainder is 3 after subtracting 0 from 3.
Bring next digit (9) of the dividend behind the 3 and repeat the process: 39 / 19

Let's proceed to step 2:
39 divided by 19 is 2 with a remainder of 1.
The number 2 becomes the next digit in our result. 
Result so far: 2.0
If we take 38 away from 39, we end up with 1.
Fetch the next digit (9) from the dividend, attach it to 1 and continue: 19 / 19

On to step 3:
19 goes into 19 1 times with a remainder of 0.
The number 1 becomes the next digit in our result. 
Result so far: 21.0
If we subtract 19 from 19, we get 0.
Take the next digit (3) from the dividend and append it to 0, then repeat: 3 / 19

Going ahead to step 4:
3 divided by 19 is 0 with a remainder of 3.
The next digit of our result is 0. 
Result so far: 210.0
The remainder is 3 after subtracting 0 from 3.
Include the next digit (3) from the dividend after 3, then repeat: 33 / 19

Let's proceed to step 5:
The number 19 fits into 33 1 times, leaving a remainder of 14.
The next digit of our result is 1. 
Result so far: 2101.0
If we subtract 19 from 33, we get 14.
Grab the next digit (9) from the dividend, add it to 14, then carry on: 149 / 19

Step 6:
When dividing 149 by 19, we get 7 with a remainder of 16.
Record the quotient 7 as the next digit in the result. 
Result so far: 21017.0
Subtracting 133 from 149 leaves us with 16.
Since there are no more digits in the dividend, we add a zero to the remainder making it 160, and continue the process.

Going ahead to step 7:
19 goes into 160 8 times with a remainder of 8.
Use 8 as the next digit of our solution. 
Result so far: 21017.8
Subtract 152 from 160 to 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.

On to step 8:
If we divide 80 by 19, we get 4 and a remainder of 4.
The next digit of our result is 4. 
Result so far: 21017.84
If we take 76 away from 80, we end up with 4.
Since there are no more digits in the dividend, we add a zero to the remainder making it 40, and continue the process.

Moving on to step 9:
When dividing 40 by 19, we get 2 with a remainder of 2.
Record the quotient 2 as the next digit in the result. 
Result so far: 21017.842
Subtracting 38 from 40 leaves us 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 10:
When dividing 20 by 19, we get 1 with a remainder of 1.
The next digit of our result is 1. 
Result so far: 21017.8421
Subtract 19 from 20 to get 1.
Since there are no more digits in the dividend, we add a zero to the remainder making it 10, and continue the process.

Going ahead to step 11:
The number 19 fits into 10 0 times, leaving a remainder of 10.
The number 0 becomes the next digit in our result. 
Result so far: 21017.8421
If we take 0 away from 10, we end up with 10.
Since there are no more digits in the dividend, we add a zero to the remainder making it 100, and continue the process.

Moving on to step 12:
The number 19 fits into 100 5 times, leaving a remainder of 5.
Use 5 as the next digit of our solution. 
Result so far: 21017.842105
Subtracting 95 from 100 leaves us with 5.
Since there are no more digits in the dividend, we add a zero to the remainder making it 50, and continue the process.

On to step 13:
19 goes into 50 2 times with a remainder of 12.
The number 2 becomes the next digit in our result. 
Result so far: 21017.8421052
Subtracting 38 from 50 leaves us with 12.
Since there are no more digits in the dividend, we add a zero to the remainder making it 120, and continue the process.

Step 14:
When dividing 120 by 19, we get 6 with a remainder of 6.
Put 6 as the next digit of the answer. 
Result so far: 21017.84210526
The remainder is 6 after subtracting 114 from 120.
Since there are no more digits in the dividend, we add a zero to the remainder making it 60, and continue the process.

The quotient of the division is 21017.84210526, and the remainder is 6e-09.