86516804 divided by 19 
Let's see how many times 19 fits into 86516804.

Moving on 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
Deduct 0 from 8 and we're left with 8.
Fetch the next digit (6) from the dividend, attach it to 8 and continue: 86 / 19

Advancing to step 2:
If we divide 86 by 19, we get 4 and a remainder of 10.
Write down 4 as next digit of the result. 
Result so far: 4.0
Subtracting 76 from 86 leaves us with 10.
Bring next digit (5) of the dividend behind the 10 and repeat the process: 105 / 19

Step 3:
When dividing 105 by 19, we get 5 with a remainder of 10.
The next digit of our result is 5. 
Result so far: 45.0
The remainder is 10 after subtracting 95 from 105.
Include the next digit (1) from the dividend after 10, then repeat: 101 / 19

Moving on to step 4:
If we divide 101 by 19, we get 5 and a remainder of 6.
The number 5 becomes the next digit in our result. 
Result so far: 455.0
Deduct 95 from 101 and we're left with 6.
Fetch the next digit (6) from the dividend, attach it to 6 and continue: 66 / 19

Step 5:
The number 19 fits into 66 3 times, leaving a remainder of 9.
The number 3 becomes the next digit in our result. 
Result so far: 4553.0
Subtract 57 from 66 to get 9.
Take the next digit (8) from the dividend and append it to 9, then repeat: 98 / 19

On to step 6:
19 goes into 98 5 times with a remainder of 3.
Record the quotient 5 as the next digit in the result. 
Result so far: 45535.0
The remainder is 3 after subtracting 95 from 98.
Fetch the next digit (0) from the dividend, attach it to 3 and continue: 30 / 19

On to step 7:
30 divided by 19 is 1 with a remainder of 11.
The number 1 becomes the next digit in our result. 
Result so far: 455351.0
If we subtract 19 from 30, we get 11.
Grab the next digit (4) from the dividend, add it to 11, then carry on: 114 / 19

Moving on to step 8:
When dividing 114 by 19, we get 6 with a remainder of 0.
Use 6 as the next digit of our solution. 
Result so far: 4553516.0
Subtract 114 from 114 to get 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

Going ahead to step 9:
0 divided by 19 is 0 with a remainder of 0.
Use 0 as the next digit of our solution. 
Result so far: 4553516.0
If we subtract 0 from 0, we get 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

Advancing to step 10:
When dividing 0 by 19, we get 0 with a remainder of 0.
Put 0 as the next digit of the answer. 
Result so far: 4553516.0
If we take 0 away from 0, we end up with 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

The final outcome is 4553516.0, with a leftover of 0.0.