9745431 ÷ 648 
Let's see how many times 648 fits into 9745431.

Moving on to step 1:
648 can be fit into 9 0 times, resulting in a remainder of 9.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Deduct 0 from 9 and we're left with 9.
Grab the next digit (7) from the dividend, add it to 9, then carry on: 97 / 648

Moving on to step 2:
648 can be fit into 97 0 times, resulting in a remainder of 97.
The next digit of our result is 0. 
Result so far: 0.0
Deduct 0 from 97 and we're left with 97.
Grab the next digit (4) from the dividend, add it to 97, then carry on: 974 / 648

Moving on to step 3:
648 can be fit into 974 1 times, resulting in a remainder of 326.
The next digit of our result is 1. 
Result so far: 1.0
Subtract 648 from 974 to get 326.
Bring next digit (5) of the dividend behind the 326 and repeat the process: 3265 / 648

On to step 4:
648 can be fit into 3265 5 times, resulting in a remainder of 25.
The next digit of our result is 5. 
Result so far: 15.0
Deduct 3240 from 3265 and we're left with 25.
Grab the next digit (4) from the dividend, add it to 25, then carry on: 254 / 648

Step 5:
648 goes into 254 0 times with a remainder of 254.
The number 0 becomes the next digit in our result. 
Result so far: 150.0
Subtracting 0 from 254 leaves us with 254.
Grab the next digit (3) from the dividend, add it to 254, then carry on: 2543 / 648

Going ahead to step 6:
The number 648 fits into 2543 3 times, leaving a remainder of 599.
Record the quotient 3 as the next digit in the result. 
Result so far: 1503.0
If we subtract 1944 from 2543, we get 599.
Bring next digit (1) of the dividend behind the 599 and repeat the process: 5991 / 648

Step 7:
The number 648 fits into 5991 9 times, leaving a remainder of 159.
Use 9 as the next digit of our solution. 
Result so far: 15039.0
Subtract 5832 from 5991 to get 159.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1590, and continue the process.

Advancing to step 8:
648 goes into 1590 2 times with a remainder of 294.
Write down 2 as next digit of the result. 
Result so far: 15039.2
If we take 1296 away from 1590, we end up with 294.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2940, and continue the process.

Moving on to step 9:
648 goes into 2940 4 times with a remainder of 348.
The number 4 becomes the next digit in our result. 
Result so far: 15039.24
If we take 2592 away from 2940, we end up with 348.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3480, and continue the process.

On to step 10:
If we divide 3480 by 648, we get 5 and a remainder of 240.
Record the quotient 5 as the next digit in the result. 
Result so far: 15039.245
Deduct 3240 from 3480 and we're left with 240.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2400, and continue the process.

On to step 11:
The number 648 fits into 2400 3 times, leaving a remainder of 456.
Write down 3 as next digit of the result. 
Result so far: 15039.2453
If we subtract 1944 from 2400, we get 456.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4560, and continue the process.

On to step 12:
The number 648 fits into 4560 7 times, leaving a remainder of 24.
The next digit of our result is 7. 
Result so far: 15039.24537
The remainder is 24 after subtracting 4536 from 4560.
Since there are no more digits in the dividend, we add a zero to the remainder making it 240, and continue the process.

Let's proceed to step 13:
The number 648 fits into 240 0 times, leaving a remainder of 240.
The next digit of our result is 0. 
Result so far: 15039.24537
Deduct 0 from 240 and we're left with 240.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2400, and continue the process.

Going ahead to step 14:
648 goes into 2400 3 times with a remainder of 456.
Use 3 as the next digit of our solution. 
Result so far: 15039.2453703
Deduct 1944 from 2400 and we're left with 456.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4560, and continue the process.

Advancing to step 15:
If we divide 4560 by 648, we get 7 and a remainder of 24.
The number 7 becomes the next digit in our result. 
Result so far: 15039.24537037
Subtracting 4536 from 4560 leaves us with 24.
Since there are no more digits in the dividend, we add a zero to the remainder making it 240, and continue the process.

In conclusion, the division gives 15039.24537037 with a balance of 2.4e-08.