13628972 divided by 640 
We're looking to find how many times 640 goes into 13628972.

Moving on to step 1:
640 goes into 1 0 times with a remainder of 1.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
If we subtract 0 from 1, we get 1.
Include the next digit (3) from the dividend after 1, then repeat: 13 / 640

Let's proceed to step 2:
640 can be fit into 13 0 times, resulting in a remainder of 13.
Write down 0 as next digit of the result. 
Result so far: 0.0
Subtract 0 from 13 to get 13.
Fetch the next digit (6) from the dividend, attach it to 13 and continue: 136 / 640

On to step 3:
If we divide 136 by 640, we get 0 and a remainder of 136.
The next digit of our result is 0. 
Result so far: 0.0
The remainder is 136 after subtracting 0 from 136.
Grab the next digit (2) from the dividend, add it to 136, then carry on: 1362 / 640

On to step 4:
The number 640 fits into 1362 2 times, leaving a remainder of 82.
The number 2 becomes the next digit in our result. 
Result so far: 2.0
If we subtract 1280 from 1362, we get 82.
Include the next digit (8) from the dividend after 82, then repeat: 828 / 640

On to step 5:
The number 640 fits into 828 1 times, leaving a remainder of 188.
Put 1 as the next digit of the answer. 
Result so far: 21.0
Deduct 640 from 828 and we're left with 188.
Bring next digit (9) of the dividend behind the 188 and repeat the process: 1889 / 640

Going ahead to step 6:
640 can be fit into 1889 2 times, resulting in a remainder of 609.
Record the quotient 2 as the next digit in the result. 
Result so far: 212.0
Subtract 1280 from 1889 to get 609.
Grab the next digit (7) from the dividend, add it to 609, then carry on: 6097 / 640

Going ahead to step 7:
6097 divided by 640 is 9 with a remainder of 337.
Use 9 as the next digit of our solution. 
Result so far: 2129.0
Subtracting 5760 from 6097 leaves us with 337.
Fetch the next digit (2) from the dividend, attach it to 337 and continue: 3372 / 640

Going ahead to step 8:
640 can be fit into 3372 5 times, resulting in a remainder of 172.
The next digit of our result is 5. 
Result so far: 21295.0
Deduct 3200 from 3372 and we're left with 172.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1720, and continue the process.

Moving on to step 9:
1720 divided by 640 is 2 with a remainder of 440.
The next digit of our result is 2. 
Result so far: 21295.2
If we take 1280 away from 1720, we end up with 440.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4400, and continue the process.

Going ahead to step 10:
4400 divided by 640 is 6 with a remainder of 560.
Use 6 as the next digit of our solution. 
Result so far: 21295.26
The remainder is 560 after subtracting 3840 from 4400.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5600, and continue the process.

Moving on to step 11:
The number 640 fits into 5600 8 times, leaving a remainder of 480.
The number 8 becomes the next digit in our result. 
Result so far: 21295.268
If we take 5120 away from 5600, we end up with 480.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4800, and continue the process.

Moving on to step 12:
If we divide 4800 by 640, we get 7 and a remainder of 320.
Use 7 as the next digit of our solution. 
Result so far: 21295.2687
If we take 4480 away from 4800, we end up with 320.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3200, and continue the process.

Advancing to step 13:
640 can be fit into 3200 5 times, resulting in a remainder of 0.
Use 5 as the next digit of our solution. 
Result so far: 21295.26875
Subtract 3200 from 3200 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.

Moving on to step 14:
0 divided by 640 is 0 with a remainder of 0.
Use 0 as the next digit of our solution. 
Result so far: 21295.26875
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.

Advancing to step 15:
If we divide 0 by 640, we get 0 and a remainder of 0.
Use 0 as the next digit of our solution. 
Result so far: 21295.26875
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.

The final result is 21295.26875 with a remainder of 0.0.