We're dividing 946491 by 78 
We're looking to find how many times 78 goes into 946491.

Let's proceed to step 1:
When dividing 9 by 78, we get 0 with a remainder of 9.
Write down 0 as next digit of the result. 
Result so far: 0.0
Deduct 0 from 9 and we're left with 9.
Include the next digit (4) from the dividend after 9, then repeat: 94 / 78

Step 2:
94 divided by 78 is 1 with a remainder of 16.
Use 1 as the next digit of our solution. 
Result so far: 1.0
If we take 78 away from 94, we end up with 16.
Grab the next digit (6) from the dividend, add it to 16, then carry on: 166 / 78

Moving on to step 3:
166 divided by 78 is 2 with a remainder of 10.
The number 2 becomes the next digit in our result. 
Result so far: 12.0
Subtract 156 from 166 to get 10.
Bring next digit (4) of the dividend behind the 10 and repeat the process: 104 / 78

Going ahead to step 4:
When dividing 104 by 78, we get 1 with a remainder of 26.
The number 1 becomes the next digit in our result. 
Result so far: 121.0
The remainder is 26 after subtracting 78 from 104.
Include the next digit (9) from the dividend after 26, then repeat: 269 / 78

Step 5:
If we divide 269 by 78, we get 3 and a remainder of 35.
The number 3 becomes the next digit in our result. 
Result so far: 1213.0
Deduct 234 from 269 and we're left with 35.
Fetch the next digit (1) from the dividend, attach it to 35 and continue: 351 / 78

Moving on to step 6:
The number 78 fits into 351 4 times, leaving a remainder of 39.
Use 4 as the next digit of our solution. 
Result so far: 12134.0
If we subtract 312 from 351, we get 39.
Since there are no more digits in the dividend, we add a zero to the remainder making it 390, and continue the process.

Let's proceed to step 7:
78 goes into 390 5 times with a remainder of 0.
The next digit of our result is 5. 
Result so far: 12134.5
If we subtract 390 from 390, we get 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

Advancing to step 8:
The number 78 fits into 0 0 times, leaving a remainder of 0.
The number 0 becomes the next digit in our result. 
Result so far: 12134.5
The remainder is 0 after subtracting 0 from 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

Step 9:
0 divided by 78 is 0 with a remainder of 0.
The number 0 becomes the next digit in our result. 
Result so far: 12134.5
If we subtract 0 from 0, we get 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

Our division results in 12134.5 with a remaining 0.0.