We're dividing 78629403 by 910 
We want to divide 78629403 by 910.

Step 1:
The number 910 fits into 7 0 times, leaving a remainder of 7.
Write down 0 as next digit of the result. 
Result so far: 0.0
Subtract 0 from 7 to get 7.
Fetch the next digit (8) from the dividend, attach it to 7 and continue: 78 / 910

Going ahead to step 2:
910 can be fit into 78 0 times, resulting in a remainder of 78.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Subtract 0 from 78 to get 78.
Grab the next digit (6) from the dividend, add it to 78, then carry on: 786 / 910

On to step 3:
The number 910 fits into 786 0 times, leaving a remainder of 786.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Subtract 0 from 786 to get 786.
Append the next digit (2) from the dividend to 786 and continue with: 7862 / 910

Moving on to step 4:
If we divide 7862 by 910, we get 8 and a remainder of 582.
Use 8 as the next digit of our solution. 
Result so far: 8.0
The remainder is 582 after subtracting 7280 from 7862.
Append the next digit (9) from the dividend to 582 and continue with: 5829 / 910

On to step 5:
5829 divided by 910 is 6 with a remainder of 369.
Use 6 as the next digit of our solution. 
Result so far: 86.0
If we take 5460 away from 5829, we end up with 369.
Bring next digit (4) of the dividend behind the 369 and repeat the process: 3694 / 910

Going ahead to step 6:
When dividing 3694 by 910, we get 4 with a remainder of 54.
Put 4 as the next digit of the answer. 
Result so far: 864.0
If we subtract 3640 from 3694, we get 54.
Bring next digit (0) of the dividend behind the 54 and repeat the process: 540 / 910

Advancing to step 7:
If we divide 540 by 910, we get 0 and a remainder of 540.
Use 0 as the next digit of our solution. 
Result so far: 8640.0
If we subtract 0 from 540, we get 540.
Include the next digit (3) from the dividend after 540, then repeat: 5403 / 910

Advancing to step 8:
5403 divided by 910 is 5 with a remainder of 853.
Put 5 as the next digit of the answer. 
Result so far: 86405.0
Subtract 4550 from 5403 to get 853.
Since there are no more digits in the dividend, we add a zero to the remainder making it 8530, and continue the process.

Step 9:
8530 divided by 910 is 9 with a remainder of 340.
The next digit of our result is 9. 
Result so far: 86405.9
Subtracting 8190 from 8530 leaves us with 340.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3400, and continue the process.

Advancing to step 10:
The number 910 fits into 3400 3 times, leaving a remainder of 670.
The next digit of our result is 3. 
Result so far: 86405.93
Subtracting 2730 from 3400 leaves us with 670.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6700, and continue the process.

On to step 11:
If we divide 6700 by 910, we get 7 and a remainder of 330.
Record the quotient 7 as the next digit in the result. 
Result so far: 86405.937
If we take 6370 away from 6700, we end up with 330.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3300, and continue the process.

On to step 12:
910 can be fit into 3300 3 times, resulting in a remainder of 570.
The next digit of our result is 3. 
Result so far: 86405.9373
The remainder is 570 after subtracting 2730 from 3300.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5700, and continue the process.

Step 13:
If we divide 5700 by 910, we get 6 and a remainder of 240.
Write down 6 as next digit of the result. 
Result so far: 86405.93736
Subtracting 5460 from 5700 leaves us with 240.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2400, and continue the process.

Let's proceed to step 14:
910 can be fit into 2400 2 times, resulting in a remainder of 580.
Write down 2 as next digit of the result. 
Result so far: 86405.937362
Subtracting 1820 from 2400 leaves us with 580.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5800, and continue the process.

Let's proceed to step 15:
910 goes into 5800 6 times with a remainder of 340.
Write down 6 as next digit of the result. 
Result so far: 86405.9373626
If we take 5460 away from 5800, we end up with 340.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3400, and continue the process.

Going ahead to step 16:
910 can be fit into 3400 3 times, resulting in a remainder of 670.
The number 3 becomes the next digit in our result. 
Result so far: 86405.93736263
If we subtract 2730 from 3400, we get 670.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6700, and continue the process.

In conclusion, the division gives 86405.93736263 with a balance of 6.7e-07.