71640952 ÷ 512 
Let's see how many times 512 fits into 71640952.

Step 1:
512 goes into 7 0 times with a remainder of 7.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
If we subtract 0 from 7, we get 7.
Take the next digit (1) from the dividend and append it to 7, then repeat: 71 / 512

Let's proceed to step 2:
If we divide 71 by 512, we get 0 and a remainder of 71.
Use 0 as the next digit of our solution. 
Result so far: 0.0
The remainder is 71 after subtracting 0 from 71.
Append the next digit (6) from the dividend to 71 and continue with: 716 / 512

Advancing to step 3:
716 divided by 512 is 1 with a remainder of 204.
Use 1 as the next digit of our solution. 
Result so far: 1.0
Subtract 512 from 716 to get 204.
Bring next digit (4) of the dividend behind the 204 and repeat the process: 2044 / 512

Going ahead to step 4:
The number 512 fits into 2044 3 times, leaving a remainder of 508.
Put 3 as the next digit of the answer. 
Result so far: 13.0
If we subtract 1536 from 2044, we get 508.
Include the next digit (0) from the dividend after 508, then repeat: 5080 / 512

Step 5:
When dividing 5080 by 512, we get 9 with a remainder of 472.
Record the quotient 9 as the next digit in the result. 
Result so far: 139.0
If we take 4608 away from 5080, we end up with 472.
Bring next digit (9) of the dividend behind the 472 and repeat the process: 4729 / 512

On to step 6:
The number 512 fits into 4729 9 times, leaving a remainder of 121.
Write down 9 as next digit of the result. 
Result so far: 1399.0
The remainder is 121 after subtracting 4608 from 4729.
Fetch the next digit (5) from the dividend, attach it to 121 and continue: 1215 / 512

Going ahead to step 7:
The number 512 fits into 1215 2 times, leaving a remainder of 191.
Use 2 as the next digit of our solution. 
Result so far: 13992.0
Deduct 1024 from 1215 and we're left with 191.
Bring next digit (2) of the dividend behind the 191 and repeat the process: 1912 / 512

Let's proceed to step 8:
512 goes into 1912 3 times with a remainder of 376.
Put 3 as the next digit of the answer. 
Result so far: 139923.0
Subtracting 1536 from 1912 leaves us with 376.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3760, and continue the process.

Let's proceed to step 9:
If we divide 3760 by 512, we get 7 and a remainder of 176.
Put 7 as the next digit of the answer. 
Result so far: 139923.7
Subtract 3584 from 3760 to get 176.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1760, and continue the process.

Advancing to step 10:
512 can be fit into 1760 3 times, resulting in a remainder of 224.
Record the quotient 3 as the next digit in the result. 
Result so far: 139923.73
If we subtract 1536 from 1760, we get 224.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2240, and continue the process.

On to step 11:
512 goes into 2240 4 times with a remainder of 192.
Record the quotient 4 as the next digit in the result. 
Result so far: 139923.734
Deduct 2048 from 2240 and we're left with 192.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1920, and continue the process.

Advancing to step 12:
When dividing 1920 by 512, we get 3 with a remainder of 384.
The number 3 becomes the next digit in our result. 
Result so far: 139923.7343
If we subtract 1536 from 1920, we get 384.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3840, and continue the process.

Going ahead to step 13:
If we divide 3840 by 512, we get 7 and a remainder of 256.
Put 7 as the next digit of the answer. 
Result so far: 139923.73437
The remainder is 256 after subtracting 3584 from 3840.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2560, and continue the process.

Let's proceed to step 14:
512 can be fit into 2560 5 times, resulting in a remainder of 0.
Record the quotient 5 as the next digit in the result. 
Result so far: 139923.734375
The remainder is 0 after subtracting 2560 from 2560.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

Advancing to step 15:
0 divided by 512 is 0 with a remainder of 0.
Record the quotient 0 as the next digit in the result. 
Result so far: 139923.734375
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.

Moving on to step 16:
512 can be fit into 0 0 times, resulting in a remainder of 0.
The number 0 becomes the next digit in our result. 
Result so far: 139923.734375
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 139923.734375 and a remainder of 0.0.