Let's divide 12178617 by 800
Our goal is to divide 12178617 by 800.

On to step 1:
If we divide 1 by 800, we get 0 and a remainder of 1.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Deduct 0 from 1 and we're left with 1.
Take the next digit (2) from the dividend and append it to 1, then repeat: 12 / 800

On to step 2:
800 can be fit into 12 0 times, resulting in a remainder of 12.
The next digit of our result is 0. 
Result so far: 0.0
Subtract 0 from 12 to get 12.
Fetch the next digit (1) from the dividend, attach it to 12 and continue: 121 / 800

On to step 3:
If we divide 121 by 800, we get 0 and a remainder of 121.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Subtract 0 from 121 to get 121.
Grab the next digit (7) from the dividend, add it to 121, then carry on: 1217 / 800

On to step 4:
The number 800 fits into 1217 1 times, leaving a remainder of 417.
Put 1 as the next digit of the answer. 
Result so far: 1.0
Subtracting 800 from 1217 leaves us with 417.
Bring next digit (8) of the dividend behind the 417 and repeat the process: 4178 / 800

On to step 5:
800 goes into 4178 5 times with a remainder of 178.
Put 5 as the next digit of the answer. 
Result so far: 15.0
If we subtract 4000 from 4178, we get 178.
Append the next digit (6) from the dividend to 178 and continue with: 1786 / 800

On to step 6:
If we divide 1786 by 800, we get 2 and a remainder of 186.
Record the quotient 2 as the next digit in the result. 
Result so far: 152.0
If we subtract 1600 from 1786, we get 186.
Include the next digit (1) from the dividend after 186, then repeat: 1861 / 800

Let's proceed to step 7:
800 goes into 1861 2 times with a remainder of 261.
The number 2 becomes the next digit in our result. 
Result so far: 1522.0
Subtracting 1600 from 1861 leaves us with 261.
Bring next digit (7) of the dividend behind the 261 and repeat the process: 2617 / 800

Let's proceed to step 8:
800 goes into 2617 3 times with a remainder of 217.
The next digit of our result is 3. 
Result so far: 15223.0
If we take 2400 away from 2617, we end up with 217.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2170, and continue the process.

Step 9:
If we divide 2170 by 800, we get 2 and a remainder of 570.
Use 2 as the next digit of our solution. 
Result so far: 15223.2
If we subtract 1600 from 2170, we get 570.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5700, and continue the process.

Moving on to step 10:
800 can be fit into 5700 7 times, resulting in a remainder of 100.
Write down 7 as next digit of the result. 
Result so far: 15223.27
Subtracting 5600 from 5700 leaves us 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:
800 can be fit into 1000 1 times, resulting in a remainder of 200.
Use 1 as the next digit of our solution. 
Result so far: 15223.271
Subtracting 800 from 1000 leaves us with 200.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2000, and continue the process.

Going ahead to step 12:
2000 divided by 800 is 2 with a remainder of 400.
Use 2 as the next digit of our solution. 
Result so far: 15223.2712
Subtracting 1600 from 2000 leaves us 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.

Going ahead to step 13:
800 goes into 4000 5 times with a remainder of 0.
The number 5 becomes the next digit in our result. 
Result so far: 15223.27125
The remainder is 0 after subtracting 4000 from 4000.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

On to step 14:
If we divide 0 by 800, we get 0 and a remainder of 0.
Write down 0 as next digit of the result. 
Result so far: 15223.27125
If we subtract 0 from 0, 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.

Moving on to step 15:
800 goes into 0 0 times with a remainder of 0.
The number 0 becomes the next digit in our result. 
Result so far: 15223.27125
Subtract 0 from 0 to 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.

After the division, we end up with 15223.27125 and a remainder of 0.0.