We're dividing 850297 by 78 
We want to divide 850297 by 78.

Going ahead to step 1:
78 goes into 8 0 times with a remainder of 8.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Subtracting 0 from 8 leaves us with 8.
Take the next digit (5) from the dividend and append it to 8, then repeat: 85 / 78

Moving on to step 2:
If we divide 85 by 78, we get 1 and a remainder of 7.
The next digit of our result is 1. 
Result so far: 1.0
If we subtract 78 from 85, we get 7.
Append the next digit (0) from the dividend to 7 and continue with: 70 / 78

Going ahead to step 3:
If we divide 70 by 78, we get 0 and a remainder of 70.
Use 0 as the next digit of our solution. 
Result so far: 10.0
If we take 0 away from 70, we end up with 70.
Include the next digit (2) from the dividend after 70, then repeat: 702 / 78

On to step 4:
When dividing 702 by 78, we get 9 with a remainder of 0.
Record the quotient 9 as the next digit in the result. 
Result so far: 109.0
If we subtract 702 from 702, we get 0.
Grab the next digit (9) from the dividend, add it to 0, then carry on: 9 / 78

On to step 5:
If we divide 9 by 78, we get 0 and a remainder of 9.
Put 0 as the next digit of the answer. 
Result so far: 1090.0
The remainder is 9 after subtracting 0 from 9.
Take the next digit (7) from the dividend and append it to 9, then repeat: 97 / 78

Going ahead to step 6:
When dividing 97 by 78, we get 1 with a remainder of 19.
Record the quotient 1 as the next digit in the result. 
Result so far: 10901.0
The remainder is 19 after subtracting 78 from 97.
Since there are no more digits in the dividend, we add a zero to the remainder making it 190, and continue the process.

On to step 7:
If we divide 190 by 78, we get 2 and a remainder of 34.
The next digit of our result is 2. 
Result so far: 10901.2
If we take 156 away from 190, 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.

Advancing to step 8:
78 goes into 340 4 times with a remainder of 28.
Use 4 as the next digit of our solution. 
Result so far: 10901.24
If we subtract 312 from 340, we get 28.
Since there are no more digits in the dividend, we add a zero to the remainder making it 280, and continue the process.

On to step 9:
The number 78 fits into 280 3 times, leaving a remainder of 46.
The next digit of our result is 3. 
Result so far: 10901.243
The remainder is 46 after subtracting 234 from 280.
Since there are no more digits in the dividend, we add a zero to the remainder making it 460, and continue the process.

Going ahead to step 10:
460 divided by 78 is 5 with a remainder of 70.
Record the quotient 5 as the next digit in the result. 
Result so far: 10901.2435
If we take 390 away from 460, we end up 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.

Let's proceed to step 11:
78 can be fit into 700 8 times, resulting in a remainder of 76.
Put 8 as the next digit of the answer. 
Result so far: 10901.24358
If we subtract 624 from 700, we 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.

Moving on to step 12:
760 divided by 78 is 9 with a remainder of 58.
The next digit of our result is 9. 
Result so far: 10901.243589
If we take 702 away from 760, we end up with 58.
Since there are no more digits in the dividend, we add a zero to the remainder making it 580, and continue the process.

On to step 13:
If we divide 580 by 78, we get 7 and a remainder of 34.
The next digit of our result is 7. 
Result so far: 10901.2435897
If we subtract 546 from 580, 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 14:
When dividing 340 by 78, we get 4 with a remainder of 28.
Put 4 as the next digit of the answer. 
Result so far: 10901.24358974
Deduct 312 from 340 and we're left 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 final outcome is 10901.24358974, with a leftover of 2.8e-08.