We look at the division of 171439 by 78 
We're looking to find how many times 78 goes into 171439.

Moving on to step 1:
78 goes into 1 0 times with a remainder of 1.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Subtracting 0 from 1 leaves us with 1.
Grab the next digit (7) from the dividend, add it to 1, then carry on: 17 / 78

Moving on to step 2:
When dividing 17 by 78, we get 0 with a remainder of 17.
Put 0 as the next digit of the answer. 
Result so far: 0.0
The remainder is 17 after subtracting 0 from 17.
Include the next digit (1) from the dividend after 17, then repeat: 171 / 78

Advancing to step 3:
78 goes into 171 2 times with a remainder of 15.
Put 2 as the next digit of the answer. 
Result so far: 2.0
If we take 156 away from 171, we end up with 15.
Bring next digit (4) of the dividend behind the 15 and repeat the process: 154 / 78

On to step 4:
The number 78 fits into 154 1 times, leaving a remainder of 76.
Record the quotient 1 as the next digit in the result. 
Result so far: 21.0
Subtracting 78 from 154 leaves us with 76.
Include the next digit (3) from the dividend after 76, then repeat: 763 / 78

Going ahead to step 5:
763 divided by 78 is 9 with a remainder of 61.
Use 9 as the next digit of our solution. 
Result so far: 219.0
Subtract 702 from 763 to get 61.
Fetch the next digit (9) from the dividend, attach it to 61 and continue: 619 / 78

On to step 6:
619 divided by 78 is 7 with a remainder of 73.
The number 7 becomes the next digit in our result. 
Result so far: 2197.0
The remainder is 73 after subtracting 546 from 619.
Since there are no more digits in the dividend, we add a zero to the remainder making it 730, and continue the process.

Moving on to step 7:
78 goes into 730 9 times with a remainder of 28.
Put 9 as the next digit of the answer. 
Result so far: 2197.9
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.

On to step 8:
280 divided by 78 is 3 with a remainder of 46.
The next digit of our result is 3. 
Result so far: 2197.93
Subtracting 234 from 280 leaves us 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.

Going ahead to step 9:
When dividing 460 by 78, we get 5 with a remainder of 70.
Record the quotient 5 as the next digit in the result. 
Result so far: 2197.935
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.

Step 10:
78 can be fit into 700 8 times, resulting in a remainder of 76.
The number 8 becomes the next digit in our result. 
Result so far: 2197.9358
If we take 624 away from 700, we end up 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.

Step 11:
If we divide 760 by 78, we get 9 and a remainder of 58.
Record the quotient 9 as the next digit in the result. 
Result so far: 2197.93589
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.

Moving on to step 12:
580 divided by 78 is 7 with a remainder of 34.
The number 7 becomes the next digit in our result. 
Result so far: 2197.935897
The remainder is 34 after subtracting 546 from 580.
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 13:
If we divide 340 by 78, we get 4 and a remainder of 28.
Record the quotient 4 as the next digit in the result. 
Result so far: 2197.9358974
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.

Going ahead to step 14:
280 divided by 78 is 3 with a remainder of 46.
Put 3 as the next digit of the answer. 
Result so far: 2197.93589743
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.

The quotient of the division is 2197.93589743, and the remainder is 4.6e-08.