856891 ÷ 19 
We're looking to find how many times 19 goes into 856891.

Advancing to step 1:
19 can be fit into 8 0 times, resulting in 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.
Include the next digit (5) from the dividend after 8, then repeat: 85 / 19

Moving on to step 2:
19 can be fit into 85 4 times, resulting in a remainder of 9.
The number 4 becomes the next digit in our result. 
Result so far: 4.0
Subtracting 76 from 85 leaves us with 9.
Grab the next digit (6) from the dividend, add it to 9, then carry on: 96 / 19

Advancing to step 3:
The number 19 fits into 96 5 times, leaving a remainder of 1.
Write down 5 as next digit of the result. 
Result so far: 45.0
Deduct 95 from 96 and we're left with 1.
Take the next digit (8) from the dividend and append it to 1, then repeat: 18 / 19

Step 4:
When dividing 18 by 19, we get 0 with a remainder of 18.
Put 0 as the next digit of the answer. 
Result so far: 450.0
If we subtract 0 from 18, we get 18.
Include the next digit (9) from the dividend after 18, then repeat: 189 / 19

Step 5:
The number 19 fits into 189 9 times, leaving a remainder of 18.
Use 9 as the next digit of our solution. 
Result so far: 4509.0
If we take 171 away from 189, we end up with 18.
Include the next digit (1) from the dividend after 18, then repeat: 181 / 19

Moving on to step 6:
19 can be fit into 181 9 times, resulting in a remainder of 10.
The number 9 becomes the next digit in our result. 
Result so far: 45099.0
The remainder is 10 after subtracting 171 from 181.
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 7:
The number 19 fits into 100 5 times, leaving a remainder of 5.
The number 5 becomes the next digit in our result. 
Result so far: 45099.5
Subtract 95 from 100 to 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.

Step 8:
The number 19 fits into 50 2 times, leaving a remainder of 12.
Write down 2 as next digit of the result. 
Result so far: 45099.52
If we subtract 38 from 50, we 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.

On to step 9:
If we divide 120 by 19, we get 6 and a remainder of 6.
The next digit of our result is 6. 
Result so far: 45099.526
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.

Moving on to step 10:
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: 45099.5263
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.

Step 11:
19 goes into 30 1 times with a remainder of 11.
Write down 1 as next digit of the result. 
Result so far: 45099.52631
If we subtract 19 from 30, we 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.

Advancing to step 12:
If we divide 110 by 19, we get 5 and a remainder of 15.
The number 5 becomes the next digit in our result. 
Result so far: 45099.526315
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.

Advancing to step 13:
19 goes into 150 7 times with a remainder of 17.
The next digit of our result is 7. 
Result so far: 45099.5263157
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.

Moving on to step 14:
170 divided by 19 is 8 with a remainder of 18.
The number 8 becomes the next digit in our result. 
Result so far: 45099.52631578
If we take 152 away from 170, we end up 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.

The final outcome is 45099.52631578, with a leftover of 1.8e-08.