78199915 ÷ 600 
We're looking to find how many times 600 goes into 78199915.

Let's proceed to step 1:
600 can be fit into 7 0 times, resulting in a remainder of 7.
The next digit of our result is 0. 
Result so far: 0.0
If we subtract 0 from 7, we get 7.
Bring next digit (8) of the dividend behind the 7 and repeat the process: 78 / 600

On to step 2:
The number 600 fits into 78 0 times, leaving a remainder of 78.
The next digit of our result is 0. 
Result so far: 0.0
Subtract 0 from 78 to get 78.
Bring next digit (1) of the dividend behind the 78 and repeat the process: 781 / 600

On to step 3:
When dividing 781 by 600, we get 1 with a remainder of 181.
Put 1 as the next digit of the answer. 
Result so far: 1.0
If we subtract 600 from 781, we get 181.
Fetch the next digit (9) from the dividend, attach it to 181 and continue: 1819 / 600

Let's proceed to step 4:
The number 600 fits into 1819 3 times, leaving a remainder of 19.
Put 3 as the next digit of the answer. 
Result so far: 13.0
If we take 1800 away from 1819, we end up with 19.
Take the next digit (9) from the dividend and append it to 19, then repeat: 199 / 600

On to step 5:
600 goes into 199 0 times with a remainder of 199.
The next digit of our result is 0. 
Result so far: 130.0
Subtracting 0 from 199 leaves us with 199.
Include the next digit (9) from the dividend after 199, then repeat: 1999 / 600

Let's proceed to step 6:
When dividing 1999 by 600, we get 3 with a remainder of 199.
Put 3 as the next digit of the answer. 
Result so far: 1303.0
Deduct 1800 from 1999 and we're left with 199.
Grab the next digit (1) from the dividend, add it to 199, then carry on: 1991 / 600

Going ahead to step 7:
The number 600 fits into 1991 3 times, leaving a remainder of 191.
Record the quotient 3 as the next digit in the result. 
Result so far: 13033.0
Subtracting 1800 from 1991 leaves us with 191.
Grab the next digit (5) from the dividend, add it to 191, then carry on: 1915 / 600

Step 8:
600 goes into 1915 3 times with a remainder of 115.
Put 3 as the next digit of the answer. 
Result so far: 130333.0
Deduct 1800 from 1915 and we're left with 115.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1150, and continue the process.

Going ahead to step 9:
600 can be fit into 1150 1 times, resulting in a remainder of 550.
Use 1 as the next digit of our solution. 
Result so far: 130333.1
Subtracting 600 from 1150 leaves us with 550.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5500, and continue the process.

On to step 10:
If we divide 5500 by 600, we get 9 and a remainder of 100.
Use 9 as the next digit of our solution. 
Result so far: 130333.19
Deduct 5400 from 5500 and we're left with 100.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1000, and continue the process.

Going ahead to step 11:
1000 divided by 600 is 1 with a remainder of 400.
The next digit of our result is 1. 
Result so far: 130333.191
If we take 600 away from 1000, we end up with 400.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4000, and continue the process.

Step 12:
The number 600 fits into 4000 6 times, leaving a remainder of 400.
Use 6 as the next digit of our solution. 
Result so far: 130333.1916
If we subtract 3600 from 4000, we get 400.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4000, and continue the process.

Moving on to step 13:
600 can be fit into 4000 6 times, resulting in a remainder of 400.
Put 6 as the next digit of the answer. 
Result so far: 130333.19166
If we take 3600 away from 4000, we end up with 400.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4000, and continue the process.

The final result is 130333.19166 with a remainder of 0.0004.