We're dividing 78419893 by 817 
Let's see how many times 817 fits into 78419893.

Going ahead to step 1:
If we divide 7 by 817, we get 0 and a remainder of 7.
Write down 0 as next digit of the result. 
Result so far: 0.0
Subtract 0 from 7 to get 7.
Fetch the next digit (8) from the dividend, attach it to 7 and continue: 78 / 817

On to step 2:
If we divide 78 by 817, we get 0 and a remainder of 78.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
If we subtract 0 from 78, we get 78.
Grab the next digit (4) from the dividend, add it to 78, then carry on: 784 / 817

On to step 3:
817 can be fit into 784 0 times, resulting in a remainder of 784.
Put 0 as the next digit of the answer. 
Result so far: 0.0
If we subtract 0 from 784, we get 784.
Include the next digit (1) from the dividend after 784, then repeat: 7841 / 817

Advancing to step 4:
When dividing 7841 by 817, we get 9 with a remainder of 488.
The next digit of our result is 9. 
Result so far: 9.0
If we take 7353 away from 7841, we end up with 488.
Grab the next digit (9) from the dividend, add it to 488, then carry on: 4889 / 817

Let's proceed to step 5:
The number 817 fits into 4889 5 times, leaving a remainder of 804.
Use 5 as the next digit of our solution. 
Result so far: 95.0
Subtracting 4085 from 4889 leaves us with 804.
Append the next digit (8) from the dividend to 804 and continue with: 8048 / 817

Step 6:
817 goes into 8048 9 times with a remainder of 695.
The number 9 becomes the next digit in our result. 
Result so far: 959.0
Subtract 7353 from 8048 to get 695.
Take the next digit (9) from the dividend and append it to 695, then repeat: 6959 / 817

Moving on to step 7:
817 goes into 6959 8 times with a remainder of 423.
Use 8 as the next digit of our solution. 
Result so far: 9598.0
If we take 6536 away from 6959, we end up with 423.
Include the next digit (3) from the dividend after 423, then repeat: 4233 / 817

Step 8:
817 goes into 4233 5 times with a remainder of 148.
The next digit of our result is 5. 
Result so far: 95985.0
The remainder is 148 after subtracting 4085 from 4233.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1480, and continue the process.

On to step 9:
When dividing 1480 by 817, we get 1 with a remainder of 663.
Put 1 as the next digit of the answer. 
Result so far: 95985.1
If we subtract 817 from 1480, we get 663.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6630, and continue the process.

Advancing to step 10:
6630 divided by 817 is 8 with a remainder of 94.
Record the quotient 8 as the next digit in the result. 
Result so far: 95985.18
The remainder is 94 after subtracting 6536 from 6630.
Since there are no more digits in the dividend, we add a zero to the remainder making it 940, and continue the process.

Going ahead to step 11:
The number 817 fits into 940 1 times, leaving a remainder of 123.
Write down 1 as next digit of the result. 
Result so far: 95985.181
If we take 817 away from 940, we end up with 123.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1230, and continue the process.

Let's proceed to step 12:
1230 divided by 817 is 1 with a remainder of 413.
The number 1 becomes the next digit in our result. 
Result so far: 95985.1811
If we take 817 away from 1230, we end up with 413.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4130, and continue the process.

The quotient of the division is 95985.1811, and the remainder is 0.00413.