Let's divide 816166 by 19
We want to figure out the number of times 816166 can be divided by 19.

Going ahead to step 1:
19 can be fit into 8 0 times, resulting in a remainder of 8.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
The remainder is 8 after subtracting 0 from 8.
Take the next digit (1) from the dividend and append it to 8, then repeat: 81 / 19

Step 2:
When dividing 81 by 19, we get 4 with a remainder of 5.
The next digit of our result is 4. 
Result so far: 4.0
Deduct 76 from 81 and we're left with 5.
Include the next digit (6) from the dividend after 5, then repeat: 56 / 19

Advancing to step 3:
19 goes into 56 2 times with a remainder of 18.
Use 2 as the next digit of our solution. 
Result so far: 42.0
If we take 38 away from 56, we end up with 18.
Include the next digit (1) from the dividend after 18, then repeat: 181 / 19

On to step 4:
When dividing 181 by 19, we get 9 with a remainder of 10.
Use 9 as the next digit of our solution. 
Result so far: 429.0
If we take 171 away from 181, we end up with 10.
Bring next digit (6) of the dividend behind the 10 and repeat the process: 106 / 19

Advancing to step 5:
When dividing 106 by 19, we get 5 with a remainder of 11.
Use 5 as the next digit of our solution. 
Result so far: 4295.0
Deduct 95 from 106 and we're left with 11.
Take the next digit (6) from the dividend and append it to 11, then repeat: 116 / 19

On to step 6:
19 can be fit into 116 6 times, resulting in a remainder of 2.
The next digit of our result is 6. 
Result so far: 42956.0
Deduct 114 from 116 and we're left 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.

Going ahead to step 7:
When dividing 20 by 19, we get 1 with a remainder of 1.
Use 1 as the next digit of our solution. 
Result so far: 42956.1
If we take 19 away from 20, we end up 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 8:
The number 19 fits into 10 0 times, leaving a remainder of 10.
Write down 0 as next digit of the result. 
Result so far: 42956.1
The remainder is 10 after subtracting 0 from 10.
Since there are no more digits in the dividend, we add a zero to the remainder making it 100, and continue the process.

Let's proceed to step 9:
19 goes into 100 5 times with a remainder of 5.
Write down 5 as next digit of the result. 
Result so far: 42956.105
If we subtract 95 from 100, we get 5.
Since there are no more digits in the dividend, we add a zero to the remainder making it 50, and continue the process.

Moving on to step 10:
When dividing 50 by 19, we get 2 with a remainder of 12.
Put 2 as the next digit of the answer. 
Result so far: 42956.1052
Subtract 38 from 50 to get 12.
Since there are no more digits in the dividend, we add a zero to the remainder making it 120, and continue the process.

Let's proceed to step 11:
If we divide 120 by 19, we get 6 and a remainder of 6.
Write down 6 as next digit of the result. 
Result so far: 42956.10526
Subtracting 114 from 120 leaves us 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 12:
When dividing 60 by 19, we get 3 with a remainder of 3.
Record the quotient 3 as the next digit in the result. 
Result so far: 42956.105263
The remainder is 3 after subtracting 57 from 60.
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 13:
If we divide 30 by 19, we get 1 and a remainder of 11.
Record the quotient 1 as the next digit in the result. 
Result so far: 42956.1052631
Subtract 19 from 30 to get 11.
Since there are no more digits in the dividend, we add a zero to the remainder making it 110, and continue the process.

On to step 14:
The number 19 fits into 110 5 times, leaving a remainder of 15.
The next digit of our result is 5. 
Result so far: 42956.10526315
Subtract 95 from 110 to 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.

The final outcome is 42956.10526315, with a leftover of 1.5e-08.