78012599 ÷ 269 
We're looking to find how many times 269 goes into 78012599.

Going ahead to step 1:
269 goes into 7 0 times with a remainder of 7.
Record the quotient 0 as the next digit in 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 / 269

Moving on to step 2:
269 goes into 78 0 times with a remainder of 78.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
The remainder is 78 after subtracting 0 from 78.
Take the next digit (0) from the dividend and append it to 78, then repeat: 780 / 269

Let's proceed to step 3:
269 goes into 780 2 times with a remainder of 242.
Put 2 as the next digit of the answer. 
Result so far: 2.0
The remainder is 242 after subtracting 538 from 780.
Fetch the next digit (1) from the dividend, attach it to 242 and continue: 2421 / 269

On to step 4:
The number 269 fits into 2421 9 times, leaving a remainder of 0.
Record the quotient 9 as the next digit in the result. 
Result so far: 29.0
Subtracting 2421 from 2421 leaves us with 0.
Take the next digit (2) from the dividend and append it to 0, then repeat: 2 / 269

Advancing to step 5:
When dividing 2 by 269, we get 0 with a remainder of 2.
The next digit of our result is 0. 
Result so far: 290.0
If we subtract 0 from 2, we get 2.
Grab the next digit (5) from the dividend, add it to 2, then carry on: 25 / 269

Going ahead to step 6:
25 divided by 269 is 0 with a remainder of 25.
Record the quotient 0 as the next digit in the result. 
Result so far: 2900.0
If we take 0 away from 25, we end up with 25.
Include the next digit (9) from the dividend after 25, then repeat: 259 / 269

Let's proceed to step 7:
If we divide 259 by 269, we get 0 and a remainder of 259.
Use 0 as the next digit of our solution. 
Result so far: 29000.0
Subtracting 0 from 259 leaves us with 259.
Grab the next digit (9) from the dividend, add it to 259, then carry on: 2599 / 269

Moving on to step 8:
If we divide 2599 by 269, we get 9 and a remainder of 178.
The number 9 becomes the next digit in our result. 
Result so far: 290009.0
Subtracting 2421 from 2599 leaves us with 178.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1780, and continue the process.

Going ahead to step 9:
If we divide 1780 by 269, we get 6 and a remainder of 166.
The number 6 becomes the next digit in our result. 
Result so far: 290009.6
The remainder is 166 after subtracting 1614 from 1780.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1660, and continue the process.

On to step 10:
269 can be fit into 1660 6 times, resulting in a remainder of 46.
The number 6 becomes the next digit in our result. 
Result so far: 290009.66
Subtract 1614 from 1660 to get 46.
Since there are no more digits in the dividend, we add a zero to the remainder making it 460, and continue the process.

After the division, we end up with 290009.66 and a remainder of 0.046.