Let's divide 68351215 by 78
We want to figure out the number of times 68351215 can be divided by 78.

Advancing to step 1:
78 can be fit into 6 0 times, resulting in a remainder of 6.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
If we take 0 away from 6, we end up with 6.
Grab the next digit (8) from the dividend, add it to 6, then carry on: 68 / 78

On to step 2:
78 can be fit into 68 0 times, resulting in a remainder of 68.
Write down 0 as next digit of the result. 
Result so far: 0.0
Deduct 0 from 68 and we're left with 68.
Include the next digit (3) from the dividend after 68, then repeat: 683 / 78

Going ahead to step 3:
683 divided by 78 is 8 with a remainder of 59.
Use 8 as the next digit of our solution. 
Result so far: 8.0
If we subtract 624 from 683, we get 59.
Bring next digit (5) of the dividend behind the 59 and repeat the process: 595 / 78

Advancing to step 4:
If we divide 595 by 78, we get 7 and a remainder of 49.
Put 7 as the next digit of the answer. 
Result so far: 87.0
The remainder is 49 after subtracting 546 from 595.
Grab the next digit (1) from the dividend, add it to 49, then carry on: 491 / 78

On to step 5:
491 divided by 78 is 6 with a remainder of 23.
Put 6 as the next digit of the answer. 
Result so far: 876.0
Deduct 468 from 491 and we're left with 23.
Append the next digit (2) from the dividend to 23 and continue with: 232 / 78

On to step 6:
232 divided by 78 is 2 with a remainder of 76.
Put 2 as the next digit of the answer. 
Result so far: 8762.0
Subtracting 156 from 232 leaves us with 76.
Bring next digit (1) of the dividend behind the 76 and repeat the process: 761 / 78

On to step 7:
The number 78 fits into 761 9 times, leaving a remainder of 59.
The next digit of our result is 9. 
Result so far: 87629.0
Deduct 702 from 761 and we're left with 59.
Append the next digit (5) from the dividend to 59 and continue with: 595 / 78

Let's proceed to step 8:
The number 78 fits into 595 7 times, leaving a remainder of 49.
The next digit of our result is 7. 
Result so far: 876297.0
Deduct 546 from 595 and we're left with 49.
Since there are no more digits in the dividend, we add a zero to the remainder making it 490, and continue the process.

On to step 9:
If we divide 490 by 78, we get 6 and a remainder of 22.
The number 6 becomes the next digit in our result. 
Result so far: 876297.6
Deduct 468 from 490 and we're left with 22.
Since there are no more digits in the dividend, we add a zero to the remainder making it 220, and continue the process.

Let's proceed to step 10:
The number 78 fits into 220 2 times, leaving a remainder of 64.
The number 2 becomes the next digit in our result. 
Result so far: 876297.62
The remainder is 64 after subtracting 156 from 220.
Since there are no more digits in the dividend, we add a zero to the remainder making it 640, and continue the process.

Moving on to step 11:
If we divide 640 by 78, we get 8 and a remainder of 16.
Put 8 as the next digit of the answer. 
Result so far: 876297.628
Subtracting 624 from 640 leaves us with 16.
Since there are no more digits in the dividend, we add a zero to the remainder making it 160, and continue the process.

Going ahead to step 12:
When dividing 160 by 78, we get 2 with a remainder of 4.
Record the quotient 2 as the next digit in the result. 
Result so far: 876297.6282
Deduct 156 from 160 and we're left with 4.
Since there are no more digits in the dividend, we add a zero to the remainder making it 40, and continue the process.

Let's proceed to step 13:
78 can be fit into 40 0 times, resulting in a remainder of 40.
Put 0 as the next digit of the answer. 
Result so far: 876297.6282
Subtracting 0 from 40 leaves us with 40.
Since there are no more digits in the dividend, we add a zero to the remainder making it 400, and continue the process.

Step 14:
When dividing 400 by 78, we get 5 with a remainder of 10.
The number 5 becomes the next digit in our result. 
Result so far: 876297.628205
Subtracting 390 from 400 leaves us with 10.
Since there are no more digits in the dividend, we add a zero to the remainder making it 100, and continue the process.

Step 15:
78 goes into 100 1 times with a remainder of 22.
Use 1 as the next digit of our solution. 
Result so far: 876297.6282051
Subtracting 78 from 100 leaves us with 22.
Since there are no more digits in the dividend, we add a zero to the remainder making it 220, and continue the process.

Going ahead to step 16:
When dividing 220 by 78, we get 2 with a remainder of 64.
The number 2 becomes the next digit in our result. 
Result so far: 876297.62820512
Subtract 156 from 220 to get 64.
Since there are no more digits in the dividend, we add a zero to the remainder making it 640, and continue the process.

Our division results in 876297.62820512 with a remaining 6.4e-08.