We're dividing 12800105 by 999 
We want to figure out the number of times 12800105 can be divided by 999.

Moving on to step 1:
When dividing 1 by 999, we get 0 with a remainder of 1.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Subtracting 0 from 1 leaves us with 1.
Take the next digit (2) from the dividend and append it to 1, then repeat: 12 / 999

Step 2:
12 divided by 999 is 0 with a remainder of 12.
Write down 0 as next digit of the result. 
Result so far: 0.0
The remainder is 12 after subtracting 0 from 12.
Append the next digit (8) from the dividend to 12 and continue with: 128 / 999

Going ahead to step 3:
When dividing 128 by 999, we get 0 with a remainder of 128.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Subtracting 0 from 128 leaves us with 128.
Bring next digit (0) of the dividend behind the 128 and repeat the process: 1280 / 999

Going ahead to step 4:
The number 999 fits into 1280 1 times, leaving a remainder of 281.
Put 1 as the next digit of the answer. 
Result so far: 1.0
Deduct 999 from 1280 and we're left with 281.
Append the next digit (0) from the dividend to 281 and continue with: 2810 / 999

Step 5:
999 can be fit into 2810 2 times, resulting in a remainder of 812.
Use 2 as the next digit of our solution. 
Result so far: 12.0
The remainder is 812 after subtracting 1998 from 2810.
Take the next digit (1) from the dividend and append it to 812, then repeat: 8121 / 999

Let's proceed to step 6:
When dividing 8121 by 999, we get 8 with a remainder of 129.
Put 8 as the next digit of the answer. 
Result so far: 128.0
Subtracting 7992 from 8121 leaves us with 129.
Bring next digit (0) of the dividend behind the 129 and repeat the process: 1290 / 999

Moving on to step 7:
If we divide 1290 by 999, we get 1 and a remainder of 291.
The next digit of our result is 1. 
Result so far: 1281.0
If we subtract 999 from 1290, we get 291.
Include the next digit (5) from the dividend after 291, then repeat: 2915 / 999

Moving on to step 8:
If we divide 2915 by 999, we get 2 and a remainder of 917.
Write down 2 as next digit of the result. 
Result so far: 12812.0
Subtracting 1998 from 2915 leaves us with 917.
Since there are no more digits in the dividend, we add a zero to the remainder making it 9170, and continue the process.

Let's proceed to step 9:
9170 divided by 999 is 9 with a remainder of 179.
Record the quotient 9 as the next digit in the result. 
Result so far: 12812.9
If we subtract 8991 from 9170, we get 179.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1790, and continue the process.

Let's proceed to step 10:
999 goes into 1790 1 times with a remainder of 791.
The next digit of our result is 1. 
Result so far: 12812.91
If we take 999 away from 1790, we end up with 791.
Since there are no more digits in the dividend, we add a zero to the remainder making it 7910, and continue the process.

Let's proceed to step 11:
999 can be fit into 7910 7 times, resulting in a remainder of 917.
Write down 7 as next digit of the result. 
Result so far: 12812.917
The remainder is 917 after subtracting 6993 from 7910.
Since there are no more digits in the dividend, we add a zero to the remainder making it 9170, and continue the process.

On to step 12:
999 can be fit into 9170 9 times, resulting in a remainder of 179.
Record the quotient 9 as the next digit in the result. 
Result so far: 12812.9179
The remainder is 179 after subtracting 8991 from 9170.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1790, and continue the process.

Let's proceed to step 13:
When dividing 1790 by 999, we get 1 with a remainder of 791.
Record the quotient 1 as the next digit in the result. 
Result so far: 12812.91791
Subtract 999 from 1790 to get 791.
Since there are no more digits in the dividend, we add a zero to the remainder making it 7910, and continue the process.

Step 14:
999 goes into 7910 7 times with a remainder of 917.
Write down 7 as next digit of the result. 
Result so far: 12812.917917
Subtract 6993 from 7910 to get 917.
Since there are no more digits in the dividend, we add a zero to the remainder making it 9170, and continue the process.

Let's proceed to step 15:
999 goes into 9170 9 times with a remainder of 179.
Use 9 as the next digit of our solution. 
Result so far: 12812.9179179
Deduct 8991 from 9170 and we're left with 179.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1790, and continue the process.

On to step 16:
999 goes into 1790 1 times with a remainder of 791.
The number 1 becomes the next digit in our result. 
Result so far: 12812.91791791
If we take 999 away from 1790, we end up with 791.
Since there are no more digits in the dividend, we add a zero to the remainder making it 7910, and continue the process.

In conclusion, the division gives 12812.91791791 with a balance of 7.91e-07.