We're dividing 87654489 by 800 
We want to divide 87654489 by 800.

Going ahead to step 1:
8 divided by 800 is 0 with a remainder of 8.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Subtract 0 from 8 to get 8.
Append the next digit (7) from the dividend to 8 and continue with: 87 / 800

On to step 2:
800 goes into 87 0 times with a remainder of 87.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Deduct 0 from 87 and we're left with 87.
Fetch the next digit (6) from the dividend, attach it to 87 and continue: 876 / 800

On to step 3:
800 goes into 876 1 times with a remainder of 76.
The number 1 becomes the next digit in our result. 
Result so far: 1.0
Deduct 800 from 876 and we're left with 76.
Fetch the next digit (5) from the dividend, attach it to 76 and continue: 765 / 800

On to step 4:
765 divided by 800 is 0 with a remainder of 765.
Put 0 as the next digit of the answer. 
Result so far: 10.0
The remainder is 765 after subtracting 0 from 765.
Take the next digit (4) from the dividend and append it to 765, then repeat: 7654 / 800

On to step 5:
7654 divided by 800 is 9 with a remainder of 454.
Use 9 as the next digit of our solution. 
Result so far: 109.0
If we take 7200 away from 7654, we end up with 454.
Bring next digit (4) of the dividend behind the 454 and repeat the process: 4544 / 800

Let's proceed to step 6:
800 can be fit into 4544 5 times, resulting in a remainder of 544.
The next digit of our result is 5. 
Result so far: 1095.0
If we subtract 4000 from 4544, we get 544.
Include the next digit (8) from the dividend after 544, then repeat: 5448 / 800

Step 7:
When dividing 5448 by 800, we get 6 with a remainder of 648.
Record the quotient 6 as the next digit in the result. 
Result so far: 10956.0
Subtracting 4800 from 5448 leaves us with 648.
Grab the next digit (9) from the dividend, add it to 648, then carry on: 6489 / 800

Going ahead to step 8:
800 goes into 6489 8 times with a remainder of 89.
Write down 8 as next digit of the result. 
Result so far: 109568.0
Deduct 6400 from 6489 and we're left with 89.
Since there are no more digits in the dividend, we add a zero to the remainder making it 890, and continue the process.

Advancing to step 9:
If we divide 890 by 800, we get 1 and a remainder of 90.
Write down 1 as next digit of the result. 
Result so far: 109568.1
If we take 800 away from 890, we end up with 90.
Since there are no more digits in the dividend, we add a zero to the remainder making it 900, and continue the process.

Let's proceed to step 10:
When dividing 900 by 800, we get 1 with a remainder of 100.
Record the quotient 1 as the next digit in the result. 
Result so far: 109568.11
Subtract 800 from 900 to get 100.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1000, and continue the process.

The quotient of the division is 109568.11, and the remainder is 0.1.