12788901 divided by 100 
Our goal is to divide 12788901 by 100.

Step 1:
If we divide 1 by 100, we get 0 and a remainder of 1.
Write down 0 as next digit of the result. 
Result so far: 0.0
Deduct 0 from 1 and we're left with 1.
Grab the next digit (2) from the dividend, add it to 1, then carry on: 12 / 100

Going ahead to step 2:
12 divided by 100 is 0 with a remainder of 12.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
If we take 0 away from 12, we end up with 12.
Append the next digit (7) from the dividend to 12 and continue with: 127 / 100

Going ahead to step 3:
100 goes into 127 1 times with a remainder of 27.
The next digit of our result is 1. 
Result so far: 1.0
Deduct 100 from 127 and we're left with 27.
Bring next digit (8) of the dividend behind the 27 and repeat the process: 278 / 100

On to step 4:
100 goes into 278 2 times with a remainder of 78.
Write down 2 as next digit of the result. 
Result so far: 12.0
Deduct 200 from 278 and we're left with 78.
Fetch the next digit (8) from the dividend, attach it to 78 and continue: 788 / 100

Advancing to step 5:
100 goes into 788 7 times with a remainder of 88.
The next digit of our result is 7. 
Result so far: 127.0
Subtract 700 from 788 to get 88.
Take the next digit (9) from the dividend and append it to 88, then repeat: 889 / 100

Moving on to step 6:
The number 100 fits into 889 8 times, leaving a remainder of 89.
The number 8 becomes the next digit in our result. 
Result so far: 1278.0
If we subtract 800 from 889, we get 89.
Include the next digit (0) from the dividend after 89, then repeat: 890 / 100

Going ahead to step 7:
100 goes into 890 8 times with a remainder of 90.
Record the quotient 8 as the next digit in the result. 
Result so far: 12788.0
If we subtract 800 from 890, we get 90.
Append the next digit (1) from the dividend to 90 and continue with: 901 / 100

Advancing to step 8:
When dividing 901 by 100, we get 9 with a remainder of 1.
Put 9 as the next digit of the answer. 
Result so far: 127889.0
Subtracting 900 from 901 leaves us with 1.
Since there are no more digits in the dividend, we add a zero to the remainder making it 10, and continue the process.

On to step 9:
100 goes into 10 0 times with a remainder of 10.
Use 0 as the next digit of our solution. 
Result so far: 127889.0
Subtract 0 from 10 to get 10.
Since there are no more digits in the dividend, we add a zero to the remainder making it 100, and continue the process.

Let's proceed to step 10:
100 can be fit into 100 1 times, resulting in a remainder of 0.
Put 1 as the next digit of the answer. 
Result so far: 127889.01
If we subtract 100 from 100, we get 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

Going ahead to step 11:
0 divided by 100 is 0 with a remainder of 0.
The number 0 becomes the next digit in our result. 
Result so far: 127889.01
Deduct 0 from 0 and we're left with 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

Step 12:
If we divide 0 by 100, we get 0 and a remainder of 0.
Record the quotient 0 as the next digit in the result. 
Result so far: 127889.01
If we take 0 away from 0, we end up with 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

Our division results in 127889.01 with a remaining 0.0.