789812 divided by 19 
We want to figure out the number of times 789812 can be divided by 19.

Going ahead to step 1:
19 goes into 7 0 times with a remainder of 7.
The next digit of our result is 0. 
Result so far: 0.0
Deduct 0 from 7 and we're left with 7.
Grab the next digit (8) from the dividend, add it to 7, then carry on: 78 / 19

Going ahead to step 2:
78 divided by 19 is 4 with a remainder of 2.
Put 4 as the next digit of the answer. 
Result so far: 4.0
Deduct 76 from 78 and we're left with 2.
Bring next digit (9) of the dividend behind the 2 and repeat the process: 29 / 19

Advancing to step 3:
The number 19 fits into 29 1 times, leaving a remainder of 10.
Record the quotient 1 as the next digit in the result. 
Result so far: 41.0
If we subtract 19 from 29, we get 10.
Append the next digit (8) from the dividend to 10 and continue with: 108 / 19

Going ahead to step 4:
19 goes into 108 5 times with a remainder of 13.
Record the quotient 5 as the next digit in the result. 
Result so far: 415.0
Subtract 95 from 108 to get 13.
Fetch the next digit (1) from the dividend, attach it to 13 and continue: 131 / 19

On to step 5:
The number 19 fits into 131 6 times, leaving a remainder of 17.
Write down 6 as next digit of the result. 
Result so far: 4156.0
Subtracting 114 from 131 leaves us with 17.
Append the next digit (2) from the dividend to 17 and continue with: 172 / 19

Advancing to step 6:
The number 19 fits into 172 9 times, leaving a remainder of 1.
The next digit of our result is 9. 
Result so far: 41569.0
Subtracting 171 from 172 leaves us with 1.
Since there are no more digits in the dividend, we add a zero to the remainder making it 10, and continue the process.

On to step 7:
When dividing 10 by 19, we get 0 with a remainder of 10.
The number 0 becomes the next digit in our result. 
Result so far: 41569.0
Subtracting 0 from 10 leaves us 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.

Advancing to step 8:
100 divided by 19 is 5 with a remainder of 5.
The next digit of our result is 5. 
Result so far: 41569.05
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 9:
19 can be fit into 50 2 times, resulting in a remainder of 12.
The number 2 becomes the next digit in our result. 
Result so far: 41569.052
The remainder is 12 after subtracting 38 from 50.
Since there are no more digits in the dividend, we add a zero to the remainder making it 120, and continue the process.

Going ahead to step 10:
The number 19 fits into 120 6 times, leaving a remainder of 6.
Put 6 as the next digit of the answer. 
Result so far: 41569.0526
If we take 114 away from 120, we end up 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.

Going ahead to step 11:
If we divide 60 by 19, we get 3 and a remainder of 3.
The next digit of our result is 3. 
Result so far: 41569.05263
If we subtract 57 from 60, we 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.

Let's proceed to step 12:
19 can be fit into 30 1 times, resulting in a remainder of 11.
The next digit of our result is 1. 
Result so far: 41569.052631
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 13:
19 can be fit into 110 5 times, resulting in a remainder of 15.
Write down 5 as next digit of the result. 
Result so far: 41569.0526315
If we subtract 95 from 110, we get 15.
Since there are no more digits in the dividend, we add a zero to the remainder making it 150, and continue the process.

Let's proceed to step 14:
The number 19 fits into 150 7 times, leaving a remainder of 17.
Put 7 as the next digit of the answer. 
Result so far: 41569.05263157
The remainder is 17 after subtracting 133 from 150.
Since there are no more digits in the dividend, we add a zero to the remainder making it 170, and continue the process.

The final outcome is 41569.05263157, with a leftover of 1.7e-08.