We look at the division of 97535009 by 640 
We want to divide 97535009 by 640.

On to step 1:
The number 640 fits into 9 0 times, leaving a remainder of 9.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Deduct 0 from 9 and we're left with 9.
Include the next digit (7) from the dividend after 9, then repeat: 97 / 640

Let's proceed to step 2:
640 goes into 97 0 times with a remainder of 97.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
If we subtract 0 from 97, we get 97.
Fetch the next digit (5) from the dividend, attach it to 97 and continue: 975 / 640

On to step 3:
640 goes into 975 1 times with a remainder of 335.
Record the quotient 1 as the next digit in the result. 
Result so far: 1.0
Subtracting 640 from 975 leaves us with 335.
Grab the next digit (3) from the dividend, add it to 335, then carry on: 3353 / 640

Let's proceed to step 4:
The number 640 fits into 3353 5 times, leaving a remainder of 153.
Put 5 as the next digit of the answer. 
Result so far: 15.0
If we subtract 3200 from 3353, we get 153.
Append the next digit (5) from the dividend to 153 and continue with: 1535 / 640

Moving on to step 5:
1535 divided by 640 is 2 with a remainder of 255.
Put 2 as the next digit of the answer. 
Result so far: 152.0
The remainder is 255 after subtracting 1280 from 1535.
Append the next digit (0) from the dividend to 255 and continue with: 2550 / 640

Moving on to step 6:
The number 640 fits into 2550 3 times, leaving a remainder of 630.
Record the quotient 3 as the next digit in the result. 
Result so far: 1523.0
The remainder is 630 after subtracting 1920 from 2550.
Bring next digit (0) of the dividend behind the 630 and repeat the process: 6300 / 640

Let's proceed to step 7:
640 can be fit into 6300 9 times, resulting in a remainder of 540.
Write down 9 as next digit of the result. 
Result so far: 15239.0
If we take 5760 away from 6300, we end up with 540.
Append the next digit (9) from the dividend to 540 and continue with: 5409 / 640

Going ahead to step 8:
The number 640 fits into 5409 8 times, leaving a remainder of 289.
Record the quotient 8 as the next digit in the result. 
Result so far: 152398.0
If we take 5120 away from 5409, we end up with 289.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2890, and continue the process.

Step 9:
640 can be fit into 2890 4 times, resulting in a remainder of 330.
Put 4 as the next digit of the answer. 
Result so far: 152398.4
Subtract 2560 from 2890 to get 330.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3300, and continue the process.

Step 10:
When dividing 3300 by 640, we get 5 with a remainder of 100.
The number 5 becomes the next digit in our result. 
Result so far: 152398.45
If we take 3200 away from 3300, we end up 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.

Advancing to step 11:
When dividing 1000 by 640, we get 1 with a remainder of 360.
The number 1 becomes the next digit in our result. 
Result so far: 152398.451
If we take 640 away from 1000, we end up with 360.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3600, and continue the process.

Let's proceed to step 12:
640 can be fit into 3600 5 times, resulting in a remainder of 400.
Put 5 as the next digit of the answer. 
Result so far: 152398.4515
The remainder is 400 after subtracting 3200 from 3600.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4000, and continue the process.

Let's proceed to step 13:
If we divide 4000 by 640, we get 6 and a remainder of 160.
Use 6 as the next digit of our solution. 
Result so far: 152398.45156
If we take 3840 away from 4000, we end up with 160.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1600, and continue the process.

Advancing to step 14:
640 can be fit into 1600 2 times, resulting in a remainder of 320.
The next digit of our result is 2. 
Result so far: 152398.451562
Subtract 1280 from 1600 to get 320.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3200, and continue the process.

On to step 15:
If we divide 3200 by 640, we get 5 and a remainder of 0.
Write down 5 as next digit of the result. 
Result so far: 152398.4515625
Subtracting 3200 from 3200 leaves us 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.

Going ahead to step 16:
If we divide 0 by 640, we get 0 and a remainder of 0.
Put 0 as the next digit of the answer. 
Result so far: 152398.4515625
Subtracting 0 from 0 leaves us 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.

The final outcome is 152398.4515625, with a leftover of 0.0.