191930 ÷ 78 
We want to divide 191930 by 78.

Going ahead to step 1:
78 goes into 1 0 times with a remainder of 1.
The next digit of our result is 0. 
Result so far: 0.0
Deduct 0 from 1 and we're left with 1.
Grab the next digit (9) from the dividend, add it to 1, then carry on: 19 / 78

On to step 2:
19 divided by 78 is 0 with a remainder of 19.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
If we subtract 0 from 19, we get 19.
Bring next digit (1) of the dividend behind the 19 and repeat the process: 191 / 78

Step 3:
191 divided by 78 is 2 with a remainder of 35.
Record the quotient 2 as the next digit in the result. 
Result so far: 2.0
If we take 156 away from 191, we end up with 35.
Append the next digit (9) from the dividend to 35 and continue with: 359 / 78

Moving on to step 4:
78 goes into 359 4 times with a remainder of 47.
Put 4 as the next digit of the answer. 
Result so far: 24.0
Subtract 312 from 359 to get 47.
Append the next digit (3) from the dividend to 47 and continue with: 473 / 78

Advancing to step 5:
78 can be fit into 473 6 times, resulting in a remainder of 5.
Write down 6 as next digit of the result. 
Result so far: 246.0
The remainder is 5 after subtracting 468 from 473.
Take the next digit (0) from the dividend and append it to 5, then repeat: 50 / 78

Advancing to step 6:
When dividing 50 by 78, we get 0 with a remainder of 50.
Record the quotient 0 as the next digit in the result. 
Result so far: 2460.0
Subtract 0 from 50 to get 50.
Since there are no more digits in the dividend, we add a zero to the remainder making it 500, and continue the process.

Going ahead to step 7:
78 can be fit into 500 6 times, resulting in a remainder of 32.
Use 6 as the next digit of our solution. 
Result so far: 2460.6
Subtracting 468 from 500 leaves us with 32.
Since there are no more digits in the dividend, we add a zero to the remainder making it 320, and continue the process.

On to step 8:
The number 78 fits into 320 4 times, leaving a remainder of 8.
Put 4 as the next digit of the answer. 
Result so far: 2460.64
Deduct 312 from 320 and we're left with 8.
Since there are no more digits in the dividend, we add a zero to the remainder making it 80, and continue the process.

Step 9:
78 goes into 80 1 times with a remainder of 2.
The number 1 becomes the next digit in our result. 
Result so far: 2460.641
If we take 78 away from 80, we end up with 2.
Since there are no more digits in the dividend, we add a zero to the remainder making it 20, and continue the process.

Step 10:
20 divided by 78 is 0 with a remainder of 20.
Put 0 as the next digit of the answer. 
Result so far: 2460.641
Subtracting 0 from 20 leaves us with 20.
Since there are no more digits in the dividend, we add a zero to the remainder making it 200, and continue the process.

Let's proceed to step 11:
If we divide 200 by 78, we get 2 and a remainder of 44.
Use 2 as the next digit of our solution. 
Result so far: 2460.64102
Subtract 156 from 200 to get 44.
Since there are no more digits in the dividend, we add a zero to the remainder making it 440, and continue the process.

Advancing to step 12:
When dividing 440 by 78, we get 5 with a remainder of 50.
Use 5 as the next digit of our solution. 
Result so far: 2460.641025
If we take 390 away from 440, we end up with 50.
Since there are no more digits in the dividend, we add a zero to the remainder making it 500, and continue the process.

Advancing to step 13:
78 can be fit into 500 6 times, resulting in a remainder of 32.
Put 6 as the next digit of the answer. 
Result so far: 2460.6410256
Subtract 468 from 500 to get 32.
Since there are no more digits in the dividend, we add a zero to the remainder making it 320, and continue the process.

Moving on to step 14:
The number 78 fits into 320 4 times, leaving a remainder of 8.
The next digit of our result is 4. 
Result so far: 2460.64102564
Deduct 312 from 320 and we're left with 8.
Since there are no more digits in the dividend, we add a zero to the remainder making it 80, and continue the process.

The final result is 2460.64102564 with a remainder of 8e-09.