68458624 ÷ 780 
We want to divide 68458624 by 780.

Advancing to step 1:
If we divide 6 by 780, we get 0 and a remainder of 6.
Write down 0 as next digit of the result. 
Result so far: 0.0
If we take 0 away from 6, we end up with 6.
Take the next digit (8) from the dividend and append it to 6, then repeat: 68 / 780

Moving on to step 2:
If we divide 68 by 780, we get 0 and a remainder of 68.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Deduct 0 from 68 and we're left with 68.
Append the next digit (4) from the dividend to 68 and continue with: 684 / 780

Moving on to step 3:
If we divide 684 by 780, we get 0 and a remainder of 684.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
The remainder is 684 after subtracting 0 from 684.
Grab the next digit (5) from the dividend, add it to 684, then carry on: 6845 / 780

On to step 4:
780 can be fit into 6845 8 times, resulting in a remainder of 605.
The next digit of our result is 8. 
Result so far: 8.0
Subtract 6240 from 6845 to get 605.
Take the next digit (8) from the dividend and append it to 605, then repeat: 6058 / 780

Step 5:
The number 780 fits into 6058 7 times, leaving a remainder of 598.
Use 7 as the next digit of our solution. 
Result so far: 87.0
Deduct 5460 from 6058 and we're left with 598.
Bring next digit (6) of the dividend behind the 598 and repeat the process: 5986 / 780

Step 6:
780 can be fit into 5986 7 times, resulting in a remainder of 526.
Put 7 as the next digit of the answer. 
Result so far: 877.0
Subtract 5460 from 5986 to get 526.
Append the next digit (2) from the dividend to 526 and continue with: 5262 / 780

Moving on to step 7:
780 goes into 5262 6 times with a remainder of 582.
Write down 6 as next digit of the result. 
Result so far: 8776.0
Subtracting 4680 from 5262 leaves us with 582.
Take the next digit (4) from the dividend and append it to 582, then repeat: 5824 / 780

Step 8:
780 goes into 5824 7 times with a remainder of 364.
Record the quotient 7 as the next digit in the result. 
Result so far: 87767.0
Deduct 5460 from 5824 and we're left with 364.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3640, and continue the process.

Moving on to step 9:
When dividing 3640 by 780, we get 4 with a remainder of 520.
Record the quotient 4 as the next digit in the result. 
Result so far: 87767.4
Subtract 3120 from 3640 to get 520.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5200, and continue the process.

On to step 10:
The number 780 fits into 5200 6 times, leaving a remainder of 520.
Write down 6 as next digit of the result. 
Result so far: 87767.46
The remainder is 520 after subtracting 4680 from 5200.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5200, and continue the process.

Step 11:
5200 divided by 780 is 6 with a remainder of 520.
Put 6 as the next digit of the answer. 
Result so far: 87767.466
If we subtract 4680 from 5200, we get 520.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5200, and continue the process.

The final result is 87767.466 with a remainder of 0.052.