We're dividing 124395 by 78 
We want to figure out the number of times 124395 can be divided by 78.

Advancing to step 1:
If we divide 1 by 78, we get 0 and a remainder of 1.
Put 0 as the next digit of the answer. 
Result so far: 0.0
The remainder is 1 after subtracting 0 from 1.
Append the next digit (2) from the dividend to 1 and continue with: 12 / 78

Step 2:
The number 78 fits into 12 0 times, leaving a remainder of 12.
Write down 0 as next digit of the result. 
Result so far: 0.0
The remainder is 12 after subtracting 0 from 12.
Include the next digit (4) from the dividend after 12, then repeat: 124 / 78

Going ahead to step 3:
78 goes into 124 1 times with a remainder of 46.
Put 1 as the next digit of the answer. 
Result so far: 1.0
Deduct 78 from 124 and we're left with 46.
Grab the next digit (3) from the dividend, add it to 46, then carry on: 463 / 78

Going ahead to step 4:
78 can be fit into 463 5 times, resulting in a remainder of 73.
Record the quotient 5 as the next digit in the result. 
Result so far: 15.0
If we subtract 390 from 463, we get 73.
Grab the next digit (9) from the dividend, add it to 73, then carry on: 739 / 78

On to step 5:
739 divided by 78 is 9 with a remainder of 37.
Use 9 as the next digit of our solution. 
Result so far: 159.0
Subtract 702 from 739 to get 37.
Bring next digit (5) of the dividend behind the 37 and repeat the process: 375 / 78

Let's proceed to step 6:
When dividing 375 by 78, we get 4 with a remainder of 63.
Use 4 as the next digit of our solution. 
Result so far: 1594.0
If we take 312 away from 375, we end up with 63.
Since there are no more digits in the dividend, we add a zero to the remainder making it 630, and continue the process.

Going ahead to step 7:
The number 78 fits into 630 8 times, leaving a remainder of 6.
Record the quotient 8 as the next digit in the result. 
Result so far: 1594.8
If we subtract 624 from 630, we get 6.
Since there are no more digits in the dividend, we add a zero to the remainder making it 60, and continue the process.

Going ahead to step 8:
78 can be fit into 60 0 times, resulting in a remainder of 60.
The number 0 becomes the next digit in our result. 
Result so far: 1594.8
The remainder is 60 after subtracting 0 from 60.
Since there are no more digits in the dividend, we add a zero to the remainder making it 600, and continue the process.

Moving on to step 9:
The number 78 fits into 600 7 times, leaving a remainder of 54.
Put 7 as the next digit of the answer. 
Result so far: 1594.807
Subtracting 546 from 600 leaves us with 54.
Since there are no more digits in the dividend, we add a zero to the remainder making it 540, and continue the process.

Going ahead to step 10:
78 can be fit into 540 6 times, resulting in a remainder of 72.
Record the quotient 6 as the next digit in the result. 
Result so far: 1594.8076
The remainder is 72 after subtracting 468 from 540.
Since there are no more digits in the dividend, we add a zero to the remainder making it 720, and continue the process.

Step 11:
When dividing 720 by 78, we get 9 with a remainder of 18.
Put 9 as the next digit of the answer. 
Result so far: 1594.80769
If we subtract 702 from 720, we get 18.
Since there are no more digits in the dividend, we add a zero to the remainder making it 180, and continue the process.

Step 12:
When dividing 180 by 78, we get 2 with a remainder of 24.
The next digit of our result is 2. 
Result so far: 1594.807692
If we subtract 156 from 180, we get 24.
Since there are no more digits in the dividend, we add a zero to the remainder making it 240, and continue the process.

Advancing to step 13:
78 can be fit into 240 3 times, resulting in a remainder of 6.
Record the quotient 3 as the next digit in the result. 
Result so far: 1594.8076923
Subtracting 234 from 240 leaves us with 6.
Since there are no more digits in the dividend, we add a zero to the remainder making it 60, and continue the process.

Step 14:
78 can be fit into 60 0 times, resulting in a remainder of 60.
The number 0 becomes the next digit in our result. 
Result so far: 1594.8076923
If we subtract 0 from 60, we get 60.
Since there are no more digits in the dividend, we add a zero to the remainder making it 600, and continue the process.

The quotient of the division is 1594.8076923, and the remainder is 6e-08.