813966 divided by 19 
We're looking to find how many times 19 goes into 813966.

Step 1:
If we divide 8 by 19, we get 0 and a remainder of 8.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
If we take 0 away from 8, we end up with 8.
Bring next digit (1) of the dividend behind the 8 and repeat the process: 81 / 19

Let's proceed to step 2:
19 can be fit into 81 4 times, resulting in a remainder of 5.
Write down 4 as next digit of the result. 
Result so far: 4.0
Deduct 76 from 81 and we're left with 5.
Include the next digit (3) from the dividend after 5, then repeat: 53 / 19

Let's proceed to step 3:
If we divide 53 by 19, we get 2 and a remainder of 15.
The next digit of our result is 2. 
Result so far: 42.0
If we take 38 away from 53, we end up with 15.
Append the next digit (9) from the dividend to 15 and continue with: 159 / 19

On to step 4:
The number 19 fits into 159 8 times, leaving a remainder of 7.
Use 8 as the next digit of our solution. 
Result so far: 428.0
Subtract 152 from 159 to get 7.
Grab the next digit (6) from the dividend, add it to 7, then carry on: 76 / 19

Advancing to step 5:
When dividing 76 by 19, we get 4 with a remainder of 0.
The number 4 becomes the next digit in our result. 
Result so far: 4284.0
If we take 76 away from 76, we end up with 0.
Take the next digit (6) from the dividend and append it to 0, then repeat: 6 / 19

Let's proceed to step 6:
The number 19 fits into 6 0 times, leaving a remainder of 6.
Use 0 as the next digit of our solution. 
Result so far: 42840.0
Deduct 0 from 6 and we're left with 6.
Since there are no more digits in the dividend, we add a zero to the remainder making it 60, and continue the process.

On to step 7:
If we divide 60 by 19, we get 3 and a remainder of 3.
The number 3 becomes the next digit in our result. 
Result so far: 42840.3
Subtract 57 from 60 to get 3.
Since there are no more digits in the dividend, we add a zero to the remainder making it 30, and continue the process.

On to step 8:
19 goes into 30 1 times with a remainder of 11.
The next digit of our result is 1. 
Result so far: 42840.31
Subtracting 19 from 30 leaves us with 11.
Since there are no more digits in the dividend, we add a zero to the remainder making it 110, and continue the process.

Step 9:
If we divide 110 by 19, we get 5 and a remainder of 15.
Write down 5 as next digit of the result. 
Result so far: 42840.315
If we take 95 away from 110, we end up 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.

Step 10:
19 goes into 150 7 times with a remainder of 17.
The number 7 becomes the next digit in our result. 
Result so far: 42840.3157
If we take 133 away from 150, we end up 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.

Let's proceed to step 11:
The number 19 fits into 170 8 times, leaving a remainder of 18.
The number 8 becomes the next digit in our result. 
Result so far: 42840.31578
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.

Step 12:
When dividing 180 by 19, we get 9 with a remainder of 9.
Use 9 as the next digit of our solution. 
Result so far: 42840.315789
Subtracting 171 from 180 leaves us with 9.
Since there are no more digits in the dividend, we add a zero to the remainder making it 90, and continue the process.

Moving on to step 13:
19 goes into 90 4 times with a remainder of 14.
Write down 4 as next digit of the result. 
Result so far: 42840.3157894
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.

Advancing to step 14:
19 can be fit into 140 7 times, resulting in a remainder of 7.
The number 7 becomes the next digit in our result. 
Result so far: 42840.31578947
The remainder is 7 after subtracting 133 from 140.
Since there are no more digits in the dividend, we add a zero to the remainder making it 70, and continue the process.

After the division, we end up with 42840.31578947 and a remainder of 7e-09.