We're dividing 170971 by 78 
Our goal is to divide 170971 by 78.

Let's proceed to step 1:
78 goes into 1 0 times with a remainder of 1.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
If we subtract 0 from 1, we get 1.
Take the next digit (7) from the dividend and append it to 1, then repeat: 17 / 78

On to step 2:
The number 78 fits into 17 0 times, leaving a remainder of 17.
Write down 0 as next digit of the result. 
Result so far: 0.0
If we take 0 away from 17, we end up with 17.
Fetch the next digit (0) from the dividend, attach it to 17 and continue: 170 / 78

Let's proceed to step 3:
78 can be fit into 170 2 times, resulting in a remainder of 14.
The next digit of our result is 2. 
Result so far: 2.0
Deduct 156 from 170 and we're left with 14.
Bring next digit (9) of the dividend behind the 14 and repeat the process: 149 / 78

Step 4:
The number 78 fits into 149 1 times, leaving a remainder of 71.
Use 1 as the next digit of our solution. 
Result so far: 21.0
The remainder is 71 after subtracting 78 from 149.
Append the next digit (7) from the dividend to 71 and continue with: 717 / 78

Let's proceed to step 5:
The number 78 fits into 717 9 times, leaving a remainder of 15.
Record the quotient 9 as the next digit in the result. 
Result so far: 219.0
If we take 702 away from 717, we end up with 15.
Fetch the next digit (1) from the dividend, attach it to 15 and continue: 151 / 78

Moving on to step 6:
If we divide 151 by 78, we get 1 and a remainder of 73.
Put 1 as the next digit of the answer. 
Result so far: 2191.0
Subtract 78 from 151 to get 73.
Since there are no more digits in the dividend, we add a zero to the remainder making it 730, and continue the process.

Let's proceed to step 7:
When dividing 730 by 78, we get 9 with a remainder of 28.
The number 9 becomes the next digit in our result. 
Result so far: 2191.9
Subtract 702 from 730 to 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.

Advancing to step 8:
When dividing 280 by 78, we get 3 with a remainder of 46.
Put 3 as the next digit of the answer. 
Result so far: 2191.93
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.

Moving on to step 9:
78 goes into 460 5 times with a remainder of 70.
Use 5 as the next digit of our solution. 
Result so far: 2191.935
The remainder is 70 after subtracting 390 from 460.
Since there are no more digits in the dividend, we add a zero to the remainder making it 700, and continue the process.

Advancing to step 10:
78 can be fit into 700 8 times, resulting in a remainder of 76.
Record the quotient 8 as the next digit in the result. 
Result so far: 2191.9358
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.

Let's proceed to step 11:
760 divided by 78 is 9 with a remainder of 58.
Put 9 as the next digit of the answer. 
Result so far: 2191.93589
Deduct 702 from 760 and we're left 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.

Let's proceed to step 12:
When dividing 580 by 78, we get 7 with a remainder of 34.
Record the quotient 7 as the next digit in the result. 
Result so far: 2191.935897
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.

Advancing to step 13:
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: 2191.9358974
Subtracting 312 from 340 leaves us 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 14:
The number 78 fits into 280 3 times, leaving a remainder of 46.
The next digit of our result is 3. 
Result so far: 2191.93589743
If we subtract 234 from 280, we get 46.
Since there are no more digits in the dividend, we add a zero to the remainder making it 460, and continue the process.

The final outcome is 2191.93589743, with a leftover of 4.6e-08.