Let's divide 815197 by 78
Let's see how many times 78 fits into 815197.

Step 1:
8 divided by 78 is 0 with a remainder of 8.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Subtract 0 from 8 to get 8.
Grab the next digit (1) from the dividend, add it to 8, then carry on: 81 / 78

Step 2:
The number 78 fits into 81 1 times, leaving a remainder of 3.
Write down 1 as next digit of the result. 
Result so far: 1.0
Subtracting 78 from 81 leaves us with 3.
Bring next digit (5) of the dividend behind the 3 and repeat the process: 35 / 78

Advancing to step 3:
The number 78 fits into 35 0 times, leaving a remainder of 35.
Record the quotient 0 as the next digit in the result. 
Result so far: 10.0
If we subtract 0 from 35, we get 35.
Bring next digit (1) of the dividend behind the 35 and repeat the process: 351 / 78

Step 4:
78 goes into 351 4 times with a remainder of 39.
Record the quotient 4 as the next digit in the result. 
Result so far: 104.0
If we subtract 312 from 351, we get 39.
Append the next digit (9) from the dividend to 39 and continue with: 399 / 78

Moving on to step 5:
78 can be fit into 399 5 times, resulting in a remainder of 9.
Write down 5 as next digit of the result. 
Result so far: 1045.0
Deduct 390 from 399 and we're left with 9.
Append the next digit (7) from the dividend to 9 and continue with: 97 / 78

Step 6:
The number 78 fits into 97 1 times, leaving a remainder of 19.
The number 1 becomes the next digit in our result. 
Result so far: 10451.0
Subtract 78 from 97 to get 19.
Since there are no more digits in the dividend, we add a zero to the remainder making it 190, and continue the process.

Advancing to step 7:
78 goes into 190 2 times with a remainder of 34.
The next digit of our result is 2. 
Result so far: 10451.2
If we subtract 156 from 190, we get 34.
Since there are no more digits in the dividend, we add a zero to the remainder making it 340, and continue the process.

Step 8:
The number 78 fits into 340 4 times, leaving a remainder of 28.
Use 4 as the next digit of our solution. 
Result so far: 10451.24
If we take 312 away from 340, we end up with 28.
Since there are no more digits in the dividend, we add a zero to the remainder making it 280, and continue the process.

Moving on to step 9:
280 divided by 78 is 3 with a remainder of 46.
Use 3 as the next digit of our solution. 
Result so far: 10451.243
Deduct 234 from 280 and we're left with 46.
Since there are no more digits in the dividend, we add a zero to the remainder making it 460, and continue the process.

On to step 10:
78 goes into 460 5 times with a remainder of 70.
Write down 5 as next digit of the result. 
Result so far: 10451.2435
Subtracting 390 from 460 leaves us with 70.
Since there are no more digits in the dividend, we add a zero to the remainder making it 700, and continue the process.

Moving on to step 11:
78 goes into 700 8 times with a remainder of 76.
Use 8 as the next digit of our solution. 
Result so far: 10451.24358
Subtract 624 from 700 to get 76.
Since there are no more digits in the dividend, we add a zero to the remainder making it 760, and continue the process.

Step 12:
760 divided by 78 is 9 with a remainder of 58.
Use 9 as the next digit of our solution. 
Result so far: 10451.243589
If we subtract 702 from 760, we get 58.
Since there are no more digits in the dividend, we add a zero to the remainder making it 580, and continue the process.

Moving on to step 13:
When dividing 580 by 78, we get 7 with a remainder of 34.
Put 7 as the next digit of the answer. 
Result so far: 10451.2435897
If we take 546 away from 580, we end up with 34.
Since there are no more digits in the dividend, we add a zero to the remainder making it 340, and continue the process.

On to step 14:
78 can be fit into 340 4 times, resulting in a remainder of 28.
Use 4 as the next digit of our solution. 
Result so far: 10451.24358974
If we take 312 away from 340, we end up with 28.
Since there are no more digits in the dividend, we add a zero to the remainder making it 280, and continue the process.

The quotient of the division is 10451.24358974, and the remainder is 2.8e-08.