97644039 divided by 800 
We want to figure out the number of times 97644039 can be divided by 800.

Moving on to step 1:
800 can be fit into 9 0 times, resulting in a remainder of 9.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Subtracting 0 from 9 leaves us with 9.
Include the next digit (7) from the dividend after 9, then repeat: 97 / 800

Step 2:
800 can be fit into 97 0 times, resulting in a remainder of 97.
Write down 0 as next digit of the result. 
Result so far: 0.0
Subtract 0 from 97 to get 97.
Grab the next digit (6) from the dividend, add it to 97, then carry on: 976 / 800

Moving on to step 3:
The number 800 fits into 976 1 times, leaving a remainder of 176.
The number 1 becomes the next digit in our result. 
Result so far: 1.0
The remainder is 176 after subtracting 800 from 976.
Include the next digit (4) from the dividend after 176, then repeat: 1764 / 800

Advancing to step 4:
800 can be fit into 1764 2 times, resulting in a remainder of 164.
The next digit of our result is 2. 
Result so far: 12.0
The remainder is 164 after subtracting 1600 from 1764.
Include the next digit (4) from the dividend after 164, then repeat: 1644 / 800

On to step 5:
800 goes into 1644 2 times with a remainder of 44.
The next digit of our result is 2. 
Result so far: 122.0
If we take 1600 away from 1644, we end up with 44.
Include the next digit (0) from the dividend after 44, then repeat: 440 / 800

On to step 6:
440 divided by 800 is 0 with a remainder of 440.
Record the quotient 0 as the next digit in the result. 
Result so far: 1220.0
If we take 0 away from 440, we end up with 440.
Take the next digit (3) from the dividend and append it to 440, then repeat: 4403 / 800

On to step 7:
The number 800 fits into 4403 5 times, leaving a remainder of 403.
Record the quotient 5 as the next digit in the result. 
Result so far: 12205.0
Subtract 4000 from 4403 to get 403.
Grab the next digit (9) from the dividend, add it to 403, then carry on: 4039 / 800

Moving on to step 8:
800 goes into 4039 5 times with a remainder of 39.
Put 5 as the next digit of the answer. 
Result so far: 122055.0
Subtract 4000 from 4039 to get 39.
Since there are no more digits in the dividend, we add a zero to the remainder making it 390, and continue the process.

Going ahead to step 9:
If we divide 390 by 800, we get 0 and a remainder of 390.
The next digit of our result is 0. 
Result so far: 122055.0
Subtracting 0 from 390 leaves us with 390.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3900, and continue the process.

Step 10:
The number 800 fits into 3900 4 times, leaving a remainder of 700.
Record the quotient 4 as the next digit in the result. 
Result so far: 122055.04
The remainder is 700 after subtracting 3200 from 3900.
Since there are no more digits in the dividend, we add a zero to the remainder making it 7000, and continue the process.

Moving on to step 11:
The number 800 fits into 7000 8 times, leaving a remainder of 600.
The number 8 becomes the next digit in our result. 
Result so far: 122055.048
The remainder is 600 after subtracting 6400 from 7000.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6000, and continue the process.

On to step 12:
6000 divided by 800 is 7 with a remainder of 400.
Use 7 as the next digit of our solution. 
Result so far: 122055.0487
Subtracting 5600 from 6000 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.

On to step 13:
4000 divided by 800 is 5 with a remainder of 0.
The number 5 becomes the next digit in our result. 
Result so far: 122055.04875
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.

Moving on to step 14:
The number 800 fits into 0 0 times, leaving a remainder of 0.
Record the quotient 0 as the next digit in the result. 
Result so far: 122055.04875
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.

On to step 15:
The number 800 fits into 0 0 times, leaving a remainder of 0.
Use 0 as the next digit of our solution. 
Result so far: 122055.04875
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 122055.04875 and a remainder of 0.0.