642372 divided by 78 
We want to divide 642372 by 78.

Advancing to step 1:
If we divide 6 by 78, we get 0 and a remainder of 6.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Deduct 0 from 6 and we're left with 6.
Append the next digit (4) from the dividend to 6 and continue with: 64 / 78

Going ahead to step 2:
When dividing 64 by 78, we get 0 with a remainder of 64.
The next digit of our result is 0. 
Result so far: 0.0
If we subtract 0 from 64, we get 64.
Grab the next digit (2) from the dividend, add it to 64, then carry on: 642 / 78

Let's proceed to step 3:
The number 78 fits into 642 8 times, leaving a remainder of 18.
Use 8 as the next digit of our solution. 
Result so far: 8.0
Deduct 624 from 642 and we're left with 18.
Bring next digit (3) of the dividend behind the 18 and repeat the process: 183 / 78

Step 4:
If we divide 183 by 78, we get 2 and a remainder of 27.
Write down 2 as next digit of the result. 
Result so far: 82.0
If we take 156 away from 183, we end up with 27.
Grab the next digit (7) from the dividend, add it to 27, then carry on: 277 / 78

Moving on to step 5:
If we divide 277 by 78, we get 3 and a remainder of 43.
Write down 3 as next digit of the result. 
Result so far: 823.0
Subtracting 234 from 277 leaves us with 43.
Include the next digit (2) from the dividend after 43, then repeat: 432 / 78

Let's proceed to step 6:
The number 78 fits into 432 5 times, leaving a remainder of 42.
Write down 5 as next digit of the result. 
Result so far: 8235.0
If we take 390 away from 432, we end up with 42.
Since there are no more digits in the dividend, we add a zero to the remainder making it 420, and continue the process.

Moving on to step 7:
When dividing 420 by 78, we get 5 with a remainder of 30.
The next digit of our result is 5. 
Result so far: 8235.5
Subtracting 390 from 420 leaves us with 30.
Since there are no more digits in the dividend, we add a zero to the remainder making it 300, and continue the process.

Step 8:
If we divide 300 by 78, we get 3 and a remainder of 66.
The number 3 becomes the next digit in our result. 
Result so far: 8235.53
Subtract 234 from 300 to get 66.
Since there are no more digits in the dividend, we add a zero to the remainder making it 660, and continue the process.

Let's proceed to step 9:
When dividing 660 by 78, we get 8 with a remainder of 36.
The number 8 becomes the next digit in our result. 
Result so far: 8235.538
Subtracting 624 from 660 leaves us with 36.
Since there are no more digits in the dividend, we add a zero to the remainder making it 360, and continue the process.

On to step 10:
78 can be fit into 360 4 times, resulting in a remainder of 48.
Record the quotient 4 as the next digit in the result. 
Result so far: 8235.5384
Subtract 312 from 360 to get 48.
Since there are no more digits in the dividend, we add a zero to the remainder making it 480, and continue the process.

Step 11:
78 can be fit into 480 6 times, resulting in a remainder of 12.
Put 6 as the next digit of the answer. 
Result so far: 8235.53846
Subtracting 468 from 480 leaves us with 12.
Since there are no more digits in the dividend, we add a zero to the remainder making it 120, and continue the process.

Moving on to step 12:
When dividing 120 by 78, we get 1 with a remainder of 42.
The next digit of our result is 1. 
Result so far: 8235.538461
If we subtract 78 from 120, we get 42.
Since there are no more digits in the dividend, we add a zero to the remainder making it 420, and continue the process.

Going ahead to step 13:
78 can be fit into 420 5 times, resulting in a remainder of 30.
The next digit of our result is 5. 
Result so far: 8235.5384615
Subtracting 390 from 420 leaves us with 30.
Since there are no more digits in the dividend, we add a zero to the remainder making it 300, and continue the process.

Step 14:
When dividing 300 by 78, we get 3 with a remainder of 66.
The next digit of our result is 3. 
Result so far: 8235.53846153
Deduct 234 from 300 and we're left with 66.
Since there are no more digits in the dividend, we add a zero to the remainder making it 660, and continue the process.

The quotient of the division is 8235.53846153, and the remainder is 6.6e-08.