Let's divide 96398753 by 645
Our goal is to divide 96398753 by 645.

Moving on to step 1:
If we divide 9 by 645, we get 0 and a remainder of 9.
The next digit of our result is 0. 
Result so far: 0.0
The remainder is 9 after subtracting 0 from 9.
Append the next digit (6) from the dividend to 9 and continue with: 96 / 645

Going ahead to step 2:
645 can be fit into 96 0 times, resulting in a remainder of 96.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Subtracting 0 from 96 leaves us with 96.
Include the next digit (3) from the dividend after 96, then repeat: 963 / 645

Advancing to step 3:
The number 645 fits into 963 1 times, leaving a remainder of 318.
The number 1 becomes the next digit in our result. 
Result so far: 1.0
Subtracting 645 from 963 leaves us with 318.
Fetch the next digit (9) from the dividend, attach it to 318 and continue: 3189 / 645

Going ahead to step 4:
645 goes into 3189 4 times with a remainder of 609.
The number 4 becomes the next digit in our result. 
Result so far: 14.0
Subtract 2580 from 3189 to get 609.
Take the next digit (8) from the dividend and append it to 609, then repeat: 6098 / 645

Let's proceed to step 5:
645 goes into 6098 9 times with a remainder of 293.
Write down 9 as next digit of the result. 
Result so far: 149.0
If we subtract 5805 from 6098, we get 293.
Bring next digit (7) of the dividend behind the 293 and repeat the process: 2937 / 645

Step 6:
When dividing 2937 by 645, we get 4 with a remainder of 357.
Record the quotient 4 as the next digit in the result. 
Result so far: 1494.0
Deduct 2580 from 2937 and we're left with 357.
Bring next digit (5) of the dividend behind the 357 and repeat the process: 3575 / 645

Let's proceed to step 7:
3575 divided by 645 is 5 with a remainder of 350.
Write down 5 as next digit of the result. 
Result so far: 14945.0
If we subtract 3225 from 3575, we get 350.
Bring next digit (3) of the dividend behind the 350 and repeat the process: 3503 / 645

Moving on to step 8:
The number 645 fits into 3503 5 times, leaving a remainder of 278.
Put 5 as the next digit of the answer. 
Result so far: 149455.0
If we subtract 3225 from 3503, we get 278.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2780, and continue the process.

On to step 9:
If we divide 2780 by 645, we get 4 and a remainder of 200.
The number 4 becomes the next digit in our result. 
Result so far: 149455.4
Subtracting 2580 from 2780 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.

Moving on to step 10:
When dividing 2000 by 645, we get 3 with a remainder of 65.
Use 3 as the next digit of our solution. 
Result so far: 149455.43
Subtract 1935 from 2000 to get 65.
Since there are no more digits in the dividend, we add a zero to the remainder making it 650, and continue the process.

On to step 11:
The number 645 fits into 650 1 times, leaving a remainder of 5.
Write down 1 as next digit of the result. 
Result so far: 149455.431
The remainder is 5 after subtracting 645 from 650.
Since there are no more digits in the dividend, we add a zero to the remainder making it 50, and continue the process.

Step 12:
If we divide 50 by 645, we get 0 and a remainder of 50.
Write down 0 as next digit of the result. 
Result so far: 149455.431
Subtracting 0 from 50 leaves us with 50.
Since there are no more digits in the dividend, we add a zero to the remainder making it 500, and continue the process.

Going ahead to step 13:
645 goes into 500 0 times with a remainder of 500.
Use 0 as the next digit of our solution. 
Result so far: 149455.431
The remainder is 500 after subtracting 0 from 500.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5000, and continue the process.

The final outcome is 149455.431, with a leftover of 0.0005.