We divide 1715 by 78
We want to divide 1715 by 78.

On to step 1:
78 can be fit into 1 0 times, resulting in a remainder of 1.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Subtract 0 from 1 to get 1.
Grab the next digit (7) from the dividend, add it to 1, then carry on: 17 / 78

On to step 2:
78 goes into 17 0 times with a remainder of 17.
The next digit of our result is 0. 
Result so far: 0.0
Deduct 0 from 17 and we're left with 17.
Bring next digit (1) of the dividend behind the 17 and repeat the process: 171 / 78

Moving on to step 3:
The number 78 fits into 171 2 times, leaving a remainder of 15.
Write down 2 as next digit of the result. 
Result so far: 2.0
Deduct 156 from 171 and we're left with 15.
Fetch the next digit (5) from the dividend, attach it to 15 and continue: 155 / 78

Let's proceed to step 4:
155 divided by 78 is 1 with a remainder of 77.
The number 1 becomes the next digit in our result. 
Result so far: 21.0
If we take 78 away from 155, we end up with 77.
Since there are no more digits in the dividend, we add a zero to the remainder making it 770, and continue the process.

Step 5:
78 goes into 770 9 times with a remainder of 68.
The number 9 becomes the next digit in our result. 
Result so far: 21.9
If we subtract 702 from 770, we get 68.
Since there are no more digits in the dividend, we add a zero to the remainder making it 680, and continue the process.

Step 6:
When dividing 680 by 78, we get 8 with a remainder of 56.
Write down 8 as next digit of the result. 
Result so far: 21.98
The remainder is 56 after subtracting 624 from 680.
Since there are no more digits in the dividend, we add a zero to the remainder making it 560, and continue the process.

Let's proceed to step 7:
When dividing 560 by 78, we get 7 with a remainder of 14.
Write down 7 as next digit of the result. 
Result so far: 21.987
If we subtract 546 from 560, we get 14.
Since there are no more digits in the dividend, we add a zero to the remainder making it 140, and continue the process.

Step 8:
140 divided by 78 is 1 with a remainder of 62.
Record the quotient 1 as the next digit in the result. 
Result so far: 21.9871
The remainder is 62 after subtracting 78 from 140.
Since there are no more digits in the dividend, we add a zero to the remainder making it 620, and continue the process.

Let's proceed to step 9:
78 goes into 620 7 times with a remainder of 74.
Record the quotient 7 as the next digit in the result. 
Result so far: 21.98717
The remainder is 74 after subtracting 546 from 620.
Since there are no more digits in the dividend, we add a zero to the remainder making it 740, and continue the process.

Let's proceed to step 10:
740 divided by 78 is 9 with a remainder of 38.
The number 9 becomes the next digit in our result. 
Result so far: 21.987179
Subtracting 702 from 740 leaves us with 38.
Since there are no more digits in the dividend, we add a zero to the remainder making it 380, and continue the process.

Advancing to step 11:
78 goes into 380 4 times with a remainder of 68.
The number 4 becomes the next digit in our result. 
Result so far: 21.9871794
Deduct 312 from 380 and we're left with 68.
Since there are no more digits in the dividend, we add a zero to the remainder making it 680, and continue the process.

Advancing to step 12:
The number 78 fits into 680 8 times, leaving a remainder of 56.
The next digit of our result is 8. 
Result so far: 21.98717948
Subtract 624 from 680 to get 56.
Since there are no more digits in the dividend, we add a zero to the remainder making it 560, and continue the process.

The final outcome is 21.98717948, with a leftover of 5.6e-08.