We're dividing 78639604 by 299 
We want to divide 78639604 by 299.

Advancing to step 1:
7 divided by 299 is 0 with a remainder of 7.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Deduct 0 from 7 and we're left with 7.
Include the next digit (8) from the dividend after 7, then repeat: 78 / 299

Step 2:
78 divided by 299 is 0 with a remainder of 78.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Deduct 0 from 78 and we're left with 78.
Fetch the next digit (6) from the dividend, attach it to 78 and continue: 786 / 299

Advancing to step 3:
The number 299 fits into 786 2 times, leaving a remainder of 188.
Write down 2 as next digit of the result. 
Result so far: 2.0
Subtract 598 from 786 to get 188.
Include the next digit (3) from the dividend after 188, then repeat: 1883 / 299

On to step 4:
299 goes into 1883 6 times with a remainder of 89.
The number 6 becomes the next digit in our result. 
Result so far: 26.0
Deduct 1794 from 1883 and we're left with 89.
Bring next digit (9) of the dividend behind the 89 and repeat the process: 899 / 299

Step 5:
299 goes into 899 3 times with a remainder of 2.
Write down 3 as next digit of the result. 
Result so far: 263.0
If we subtract 897 from 899, we get 2.
Grab the next digit (6) from the dividend, add it to 2, then carry on: 26 / 299

On to step 6:
26 divided by 299 is 0 with a remainder of 26.
The number 0 becomes the next digit in our result. 
Result so far: 2630.0
Subtracting 0 from 26 leaves us with 26.
Append the next digit (0) from the dividend to 26 and continue with: 260 / 299

Going ahead to step 7:
299 can be fit into 260 0 times, resulting in a remainder of 260.
Put 0 as the next digit of the answer. 
Result so far: 26300.0
Subtract 0 from 260 to get 260.
Append the next digit (4) from the dividend to 260 and continue with: 2604 / 299

Let's proceed to step 8:
The number 299 fits into 2604 8 times, leaving a remainder of 212.
Write down 8 as next digit of the result. 
Result so far: 263008.0
If we subtract 2392 from 2604, we get 212.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2120, and continue the process.

Step 9:
The number 299 fits into 2120 7 times, leaving a remainder of 27.
The next digit of our result is 7. 
Result so far: 263008.7
Deduct 2093 from 2120 and we're left with 27.
Since there are no more digits in the dividend, we add a zero to the remainder making it 270, and continue the process.

On to step 10:
The number 299 fits into 270 0 times, leaving a remainder of 270.
The next digit of our result is 0. 
Result so far: 263008.7
If we take 0 away from 270, we end up with 270.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2700, and continue the process.

Let's proceed to step 11:
When dividing 2700 by 299, we get 9 with a remainder of 9.
Record the quotient 9 as the next digit in the result. 
Result so far: 263008.709
If we take 2691 away from 2700, we end up with 9.
Since there are no more digits in the dividend, we add a zero to the remainder making it 90, and continue the process.

Let's proceed to step 12:
299 goes into 90 0 times with a remainder of 90.
Put 0 as the next digit of the answer. 
Result so far: 263008.709
The remainder is 90 after subtracting 0 from 90.
Since there are no more digits in the dividend, we add a zero to the remainder making it 900, and continue the process.

Moving on to step 13:
If we divide 900 by 299, we get 3 and a remainder of 3.
The next digit of our result is 3. 
Result so far: 263008.70903
If we take 897 away from 900, we end up with 3.
Since there are no more digits in the dividend, we add a zero to the remainder making it 30, and continue the process.

Going ahead to step 14:
299 goes into 30 0 times with a remainder of 30.
The number 0 becomes the next digit in our result. 
Result so far: 263008.70903
If we subtract 0 from 30, we get 30.
Since there are no more digits in the dividend, we add a zero to the remainder making it 300, and continue the process.

Step 15:
299 can be fit into 300 1 times, resulting in a remainder of 1.
Write down 1 as next digit of the result. 
Result so far: 263008.7090301
Subtract 299 from 300 to get 1.
Since there are no more digits in the dividend, we add a zero to the remainder making it 10, and continue the process.

Advancing to step 16:
299 can be fit into 10 0 times, resulting in a remainder of 10.
Write down 0 as next digit of the result. 
Result so far: 263008.7090301
Deduct 0 from 10 and we're left 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.

Our division results in 263008.7090301 with a remaining 1e-08.