We look at the division of 78166198 by 816 
We want to divide 78166198 by 816.

Step 1:
When dividing 7 by 816, we get 0 with 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.
Grab the next digit (8) from the dividend, add it to 7, then carry on: 78 / 816

Step 2:
If we divide 78 by 816, we get 0 and a remainder of 78.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Subtract 0 from 78 to get 78.
Include the next digit (1) from the dividend after 78, then repeat: 781 / 816

Let's proceed to step 3:
The number 816 fits into 781 0 times, leaving a remainder of 781.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Subtract 0 from 781 to get 781.
Grab the next digit (6) from the dividend, add it to 781, then carry on: 7816 / 816

On to step 4:
7816 divided by 816 is 9 with a remainder of 472.
The next digit of our result is 9. 
Result so far: 9.0
Subtract 7344 from 7816 to get 472.
Take the next digit (6) from the dividend and append it to 472, then repeat: 4726 / 816

On to step 5:
If we divide 4726 by 816, we get 5 and a remainder of 646.
Record the quotient 5 as the next digit in the result. 
Result so far: 95.0
If we take 4080 away from 4726, we end up with 646.
Bring next digit (1) of the dividend behind the 646 and repeat the process: 6461 / 816

Moving on to step 6:
The number 816 fits into 6461 7 times, leaving a remainder of 749.
Write down 7 as next digit of the result. 
Result so far: 957.0
If we subtract 5712 from 6461, we get 749.
Fetch the next digit (9) from the dividend, attach it to 749 and continue: 7499 / 816

Moving on to step 7:
The number 816 fits into 7499 9 times, leaving a remainder of 155.
Put 9 as the next digit of the answer. 
Result so far: 9579.0
If we subtract 7344 from 7499, we get 155.
Grab the next digit (8) from the dividend, add it to 155, then carry on: 1558 / 816

On to step 8:
When dividing 1558 by 816, we get 1 with a remainder of 742.
Use 1 as the next digit of our solution. 
Result so far: 95791.0
The remainder is 742 after subtracting 816 from 1558.
Since there are no more digits in the dividend, we add a zero to the remainder making it 7420, and continue the process.

Advancing to step 9:
7420 divided by 816 is 9 with a remainder of 76.
Use 9 as the next digit of our solution. 
Result so far: 95791.9
Subtracting 7344 from 7420 leaves us with 76.
Since there are no more digits in the dividend, we add a zero to the remainder making it 760, and continue the process.

Going ahead to step 10:
816 goes into 760 0 times with a remainder of 760.
Write down 0 as next digit of the result. 
Result so far: 95791.9
If we take 0 away from 760, we end up with 760.
Since there are no more digits in the dividend, we add a zero to the remainder making it 7600, and continue the process.

Going ahead to step 11:
7600 divided by 816 is 9 with a remainder of 256.
Use 9 as the next digit of our solution. 
Result so far: 95791.909
Subtracting 7344 from 7600 leaves us with 256.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2560, and continue the process.

Advancing to step 12:
If we divide 2560 by 816, we get 3 and a remainder of 112.
Write down 3 as next digit of the result. 
Result so far: 95791.9093
Deduct 2448 from 2560 and we're left with 112.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1120, and continue the process.

Moving on to step 13:
1120 divided by 816 is 1 with a remainder of 304.
Put 1 as the next digit of the answer. 
Result so far: 95791.90931
Subtract 816 from 1120 to get 304.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3040, and continue the process.

Let's proceed to step 14:
3040 divided by 816 is 3 with a remainder of 592.
Record the quotient 3 as the next digit in the result. 
Result so far: 95791.909313
Subtract 2448 from 3040 to get 592.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5920, and continue the process.

Going ahead to step 15:
When dividing 5920 by 816, we get 7 with a remainder of 208.
Write down 7 as next digit of the result. 
Result so far: 95791.9093137
If we subtract 5712 from 5920, we get 208.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2080, and continue the process.

Let's proceed to step 16:
816 goes into 2080 2 times with a remainder of 448.
Write down 2 as next digit of the result. 
Result so far: 95791.90931372
Subtracting 1632 from 2080 leaves us with 448.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4480, and continue the process.

The final outcome is 95791.90931372, with a leftover of 4.48e-07.