642492 divided by 78 
Let's see how many times 78 fits into 642492.

Moving on to step 1:
If we divide 6 by 78, we get 0 and a remainder of 6.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Subtracting 0 from 6 leaves us with 6.
Fetch the next digit (4) from the dividend, attach it to 6 and continue: 64 / 78

Step 2:
If we divide 64 by 78, we get 0 and a remainder of 64.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Subtracting 0 from 64 leaves us with 64.
Append the next digit (2) from the dividend to 64 and continue with: 642 / 78

On to step 3:
When dividing 642 by 78, we get 8 with a remainder of 18.
The next digit of our result is 8. 
Result so far: 8.0
Subtract 624 from 642 to get 18.
Fetch the next digit (4) from the dividend, attach it to 18 and continue: 184 / 78

Advancing to step 4:
78 goes into 184 2 times with a remainder of 28.
Put 2 as the next digit of the answer. 
Result so far: 82.0
The remainder is 28 after subtracting 156 from 184.
Take the next digit (9) from the dividend and append it to 28, then repeat: 289 / 78

Going ahead to step 5:
The number 78 fits into 289 3 times, leaving a remainder of 55.
Use 3 as the next digit of our solution. 
Result so far: 823.0
The remainder is 55 after subtracting 234 from 289.
Grab the next digit (2) from the dividend, add it to 55, then carry on: 552 / 78

Going ahead to step 6:
When dividing 552 by 78, we get 7 with a remainder of 6.
Use 7 as the next digit of our solution. 
Result so far: 8237.0
If we subtract 546 from 552, 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.

Step 7:
78 can be fit into 60 0 times, resulting in a remainder of 60.
Put 0 as the next digit of the answer. 
Result so far: 8237.0
Subtracting 0 from 60 leaves us with 60.
Since there are no more digits in the dividend, we add a zero to the remainder making it 600, and continue the process.

Going ahead to step 8:
When dividing 600 by 78, we get 7 with a remainder of 54.
The next digit of our result is 7. 
Result so far: 8237.07
Subtract 546 from 600 to get 54.
Since there are no more digits in the dividend, we add a zero to the remainder making it 540, and continue the process.

Moving on to step 9:
540 divided by 78 is 6 with a remainder of 72.
Write down 6 as next digit of the result. 
Result so far: 8237.076
If we subtract 468 from 540, we get 72.
Since there are no more digits in the dividend, we add a zero to the remainder making it 720, and continue the process.

Going ahead to step 10:
78 can be fit into 720 9 times, resulting in a remainder of 18.
The next digit of our result is 9. 
Result so far: 8237.0769
Subtract 702 from 720 to 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.

On to step 11:
78 can be fit into 180 2 times, resulting in a remainder of 24.
The number 2 becomes the next digit in our result. 
Result so far: 8237.07692
Subtract 156 from 180 to 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 12:
If we divide 240 by 78, we get 3 and a remainder of 6.
Record the quotient 3 as the next digit in the result. 
Result so far: 8237.076923
If we take 234 away from 240, we end up 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.

Let's proceed to step 13:
78 goes into 60 0 times with a remainder of 60.
Record the quotient 0 as the next digit in the result. 
Result so far: 8237.076923
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.

Step 14:
If we divide 600 by 78, we get 7 and a remainder of 54.
Write down 7 as next digit of the result. 
Result so far: 8237.07692307
If we take 546 away from 600, we end up 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.

The quotient of the division is 8237.07692307, and the remainder is 5.4e-08.