We divide 942123 by 78
We want to divide 942123 by 78.

Let's proceed to step 1:
When dividing 9 by 78, we get 0 with a remainder of 9.
Put 0 as the next digit of the answer. 
Result so far: 0.0
If we take 0 away from 9, we end up with 9.
Grab the next digit (4) from the dividend, add it to 9, then carry on: 94 / 78

Going ahead to step 2:
The number 78 fits into 94 1 times, leaving a remainder of 16.
The number 1 becomes the next digit in our result. 
Result so far: 1.0
Subtracting 78 from 94 leaves us with 16.
Bring next digit (2) of the dividend behind the 16 and repeat the process: 162 / 78

On to step 3:
78 can be fit into 162 2 times, resulting in a remainder of 6.
Write down 2 as next digit of the result. 
Result so far: 12.0
If we subtract 156 from 162, we get 6.
Bring next digit (1) of the dividend behind the 6 and repeat the process: 61 / 78

Step 4:
78 can be fit into 61 0 times, resulting in a remainder of 61.
Put 0 as the next digit of the answer. 
Result so far: 120.0
If we subtract 0 from 61, we get 61.
Bring next digit (2) of the dividend behind the 61 and repeat the process: 612 / 78

Advancing to step 5:
If we divide 612 by 78, we get 7 and a remainder of 66.
Put 7 as the next digit of the answer. 
Result so far: 1207.0
If we take 546 away from 612, we end up with 66.
Fetch the next digit (3) from the dividend, attach it to 66 and continue: 663 / 78

Moving on to step 6:
663 divided by 78 is 8 with a remainder of 39.
Use 8 as the next digit of our solution. 
Result so far: 12078.0
The remainder is 39 after subtracting 624 from 663.
Since there are no more digits in the dividend, we add a zero to the remainder making it 390, and continue the process.

Step 7:
78 can be fit into 390 5 times, resulting in a remainder of 0.
Put 5 as the next digit of the answer. 
Result so far: 12078.5
Subtract 390 from 390 to 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: 12078.5
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.

Step 9:
When dividing 0 by 78, we get 0 with a remainder of 0.
Use 0 as the next digit of our solution. 
Result so far: 12078.5
Deduct 0 from 0 and we're left with 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 12078.5 with a remaining 0.0.