We look at the division of 8641146 by 640 
Let's see how many times 640 fits into 8641146.

Advancing to step 1:
640 can be fit into 8 0 times, resulting in a remainder of 8.
Write down 0 as next digit of the result. 
Result so far: 0.0
Deduct 0 from 8 and we're left with 8.
Take the next digit (6) from the dividend and append it to 8, then repeat: 86 / 640

Moving on to step 2:
The number 640 fits into 86 0 times, leaving a remainder of 86.
Write down 0 as next digit of the result. 
Result so far: 0.0
If we take 0 away from 86, we end up with 86.
Include the next digit (4) from the dividend after 86, then repeat: 864 / 640

On to step 3:
864 divided by 640 is 1 with a remainder of 224.
Record the quotient 1 as the next digit in the result. 
Result so far: 1.0
If we take 640 away from 864, we end up with 224.
Fetch the next digit (1) from the dividend, attach it to 224 and continue: 2241 / 640

Step 4:
When dividing 2241 by 640, we get 3 with a remainder of 321.
Use 3 as the next digit of our solution. 
Result so far: 13.0
Deduct 1920 from 2241 and we're left with 321.
Include the next digit (1) from the dividend after 321, then repeat: 3211 / 640

Let's proceed to step 5:
640 can be fit into 3211 5 times, resulting in a remainder of 11.
Record the quotient 5 as the next digit in the result. 
Result so far: 135.0
If we take 3200 away from 3211, we end up with 11.
Append the next digit (4) from the dividend to 11 and continue with: 114 / 640

Going ahead to step 6:
114 divided by 640 is 0 with a remainder of 114.
Put 0 as the next digit of the answer. 
Result so far: 1350.0
Subtract 0 from 114 to get 114.
Grab the next digit (6) from the dividend, add it to 114, then carry on: 1146 / 640

Let's proceed to step 7:
640 goes into 1146 1 times with a remainder of 506.
The number 1 becomes the next digit in our result. 
Result so far: 13501.0
If we take 640 away from 1146, we end up with 506.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5060, and continue the process.

Going ahead to step 8:
The number 640 fits into 5060 7 times, leaving a remainder of 580.
The next digit of our result is 7. 
Result so far: 13501.7
If we take 4480 away from 5060, we end up with 580.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5800, and continue the process.

Advancing to step 9:
640 goes into 5800 9 times with a remainder of 40.
The next digit of our result is 9. 
Result so far: 13501.79
Subtract 5760 from 5800 to get 40.
Since there are no more digits in the dividend, we add a zero to the remainder making it 400, and continue the process.

Going ahead to step 10:
640 can be fit into 400 0 times, resulting in a remainder of 400.
Write down 0 as next digit of the result. 
Result so far: 13501.79
Subtracting 0 from 400 leaves us with 400.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4000, and continue the process.

Going ahead to step 11:
If we divide 4000 by 640, we get 6 and a remainder of 160.
Record the quotient 6 as the next digit in the result. 
Result so far: 13501.7906
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.

Let's proceed to step 12:
When dividing 1600 by 640, we get 2 with a remainder of 320.
The number 2 becomes the next digit in our result. 
Result so far: 13501.79062
If we take 1280 away from 1600, 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.

On to step 13:
640 can be fit into 3200 5 times, resulting in a remainder of 0.
Write down 5 as next digit of the result. 
Result so far: 13501.790625
If we take 3200 away from 3200, we end up 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.

Let's proceed to step 14:
The number 640 fits into 0 0 times, leaving a remainder of 0.
Put 0 as the next digit of the answer. 
Result so far: 13501.790625
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.

Let's proceed to step 15:
0 divided by 640 is 0 with a remainder of 0.
Use 0 as the next digit of our solution. 
Result so far: 13501.790625
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.

Our division results in 13501.790625 with a remaining 0.0.