We're dividing 17191495 by 78 
We want to figure out the number of times 17191495 can be divided by 78.

Going ahead to step 1:
78 can be fit into 1 0 times, resulting in a remainder of 1.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
If we take 0 away from 1, we end up with 1.
Bring next digit (7) of the dividend behind the 1 and repeat the process: 17 / 78

On to step 2:
17 divided by 78 is 0 with a remainder of 17.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Subtracting 0 from 17 leaves us with 17.
Grab the next digit (1) from the dividend, add it to 17, then carry on: 171 / 78

Step 3:
The number 78 fits into 171 2 times, leaving a remainder of 15.
Put 2 as the next digit of the answer. 
Result so far: 2.0
Subtract 156 from 171 to get 15.
Fetch the next digit (9) from the dividend, attach it to 15 and continue: 159 / 78

Advancing to step 4:
When dividing 159 by 78, we get 2 with a remainder of 3.
The number 2 becomes the next digit in our result. 
Result so far: 22.0
If we subtract 156 from 159, we get 3.
Fetch the next digit (1) from the dividend, attach it to 3 and continue: 31 / 78

Moving on to step 5:
78 can be fit into 31 0 times, resulting in a remainder of 31.
Write down 0 as next digit of the result. 
Result so far: 220.0
Deduct 0 from 31 and we're left with 31.
Include the next digit (4) from the dividend after 31, then repeat: 314 / 78

Let's proceed to step 6:
If we divide 314 by 78, we get 4 and a remainder of 2.
The number 4 becomes the next digit in our result. 
Result so far: 2204.0
If we take 312 away from 314, we end up with 2.
Include the next digit (9) from the dividend after 2, then repeat: 29 / 78

Moving on to step 7:
If we divide 29 by 78, we get 0 and a remainder of 29.
Record the quotient 0 as the next digit in the result. 
Result so far: 22040.0
Subtract 0 from 29 to get 29.
Append the next digit (5) from the dividend to 29 and continue with: 295 / 78

Advancing to step 8:
78 can be fit into 295 3 times, resulting in a remainder of 61.
Put 3 as the next digit of the answer. 
Result so far: 220403.0
The remainder is 61 after subtracting 234 from 295.
Since there are no more digits in the dividend, we add a zero to the remainder making it 610, and continue the process.

Moving on to step 9:
If we divide 610 by 78, we get 7 and a remainder of 64.
The number 7 becomes the next digit in our result. 
Result so far: 220403.7
If we subtract 546 from 610, we get 64.
Since there are no more digits in the dividend, we add a zero to the remainder making it 640, and continue the process.

Going ahead to step 10:
78 can be fit into 640 8 times, resulting in a remainder of 16.
The number 8 becomes the next digit in our result. 
Result so far: 220403.78
If we take 624 away from 640, we end up with 16.
Since there are no more digits in the dividend, we add a zero to the remainder making it 160, and continue the process.

Moving on to step 11:
160 divided by 78 is 2 with a remainder of 4.
Put 2 as the next digit of the answer. 
Result so far: 220403.782
Deduct 156 from 160 and we're left with 4.
Since there are no more digits in the dividend, we add a zero to the remainder making it 40, and continue the process.

Going ahead to step 12:
If we divide 40 by 78, we get 0 and a remainder of 40.
Record the quotient 0 as the next digit in the result. 
Result so far: 220403.782
Subtract 0 from 40 to get 40.
Since there are no more digits in the dividend, we add a zero to the remainder making it 400, and continue the process.

Let's proceed to step 13:
78 goes into 400 5 times with a remainder of 10.
The number 5 becomes the next digit in our result. 
Result so far: 220403.78205
If we subtract 390 from 400, we get 10.
Since there are no more digits in the dividend, we add a zero to the remainder making it 100, and continue the process.

Step 14:
The number 78 fits into 100 1 times, leaving a remainder of 22.
The next digit of our result is 1. 
Result so far: 220403.782051
The remainder is 22 after subtracting 78 from 100.
Since there are no more digits in the dividend, we add a zero to the remainder making it 220, and continue the process.

Going ahead to step 15:
The number 78 fits into 220 2 times, leaving a remainder of 64.
Use 2 as the next digit of our solution. 
Result so far: 220403.7820512
If we subtract 156 from 220, we get 64.
Since there are no more digits in the dividend, we add a zero to the remainder making it 640, and continue the process.

Let's proceed to step 16:
78 goes into 640 8 times with a remainder of 16.
Record the quotient 8 as the next digit in the result. 
Result so far: 220403.78205128
The remainder is 16 after subtracting 624 from 640.
Since there are no more digits in the dividend, we add a zero to the remainder making it 160, and continue the process.

The final outcome is 220403.78205128, with a leftover of 1.6e-08.