We look at the division of 27689572 by 640 
The aim is to understand the frequency of 640 in 27689572.

Moving on to step 1:
When dividing 2 by 640, we get 0 with a remainder of 2.
Use 0 as the next digit of our solution. 
Result so far: 0.0
If we take 0 away from 2, we end up with 2.
Bring next digit (7) of the dividend behind the 2 and repeat the process: 27 / 640

Advancing to step 2:
27 divided by 640 is 0 with a remainder of 27.
Write down 0 as next digit of the result. 
Result so far: 0.0
If we subtract 0 from 27, we get 27.
Include the next digit (6) from the dividend after 27, then repeat: 276 / 640

Step 3:
640 goes into 276 0 times with a remainder of 276.
The next digit of our result is 0. 
Result so far: 0.0
If we take 0 away from 276, we end up with 276.
Grab the next digit (8) from the dividend, add it to 276, then carry on: 2768 / 640

On to step 4:
If we divide 2768 by 640, we get 4 and a remainder of 208.
Put 4 as the next digit of the answer. 
Result so far: 4.0
Subtract 2560 from 2768 to get 208.
Append the next digit (9) from the dividend to 208 and continue with: 2089 / 640

Advancing to step 5:
The number 640 fits into 2089 3 times, leaving a remainder of 169.
The number 3 becomes the next digit in our result. 
Result so far: 43.0
Subtracting 1920 from 2089 leaves us with 169.
Fetch the next digit (5) from the dividend, attach it to 169 and continue: 1695 / 640

Going ahead to step 6:
The number 640 fits into 1695 2 times, leaving a remainder of 415.
The next digit of our result is 2. 
Result so far: 432.0
If we subtract 1280 from 1695, we get 415.
Bring next digit (7) of the dividend behind the 415 and repeat the process: 4157 / 640

Advancing to step 7:
640 goes into 4157 6 times with a remainder of 317.
Put 6 as the next digit of the answer. 
Result so far: 4326.0
If we subtract 3840 from 4157, we get 317.
Include the next digit (2) from the dividend after 317, then repeat: 3172 / 640

On to step 8:
3172 divided by 640 is 4 with a remainder of 612.
Record the quotient 4 as the next digit in the result. 
Result so far: 43264.0
The remainder is 612 after subtracting 2560 from 3172.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6120, and continue the process.

Going ahead to step 9:
640 goes into 6120 9 times with a remainder of 360.
The next digit of our result is 9. 
Result so far: 43264.9
Deduct 5760 from 6120 and we're left with 360.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3600, and continue the process.

Moving on to step 10:
If we divide 3600 by 640, we get 5 and a remainder of 400.
The number 5 becomes the next digit in our result. 
Result so far: 43264.95
Deduct 3200 from 3600 and we're left 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.

On to step 11:
4000 divided by 640 is 6 with a remainder of 160.
Write down 6 as next digit of the result. 
Result so far: 43264.956
If we subtract 3840 from 4000, we get 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:
1600 divided by 640 is 2 with a remainder of 320.
Put 2 as the next digit of the answer. 
Result so far: 43264.9562
If we subtract 1280 from 1600, we get 320.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3200, and continue the process.

Moving on to step 13:
If we divide 3200 by 640, we get 5 and a remainder of 0.
The next digit of our result is 5. 
Result so far: 43264.95625
Deduct 3200 from 3200 and we're left 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.

Moving on to step 14:
640 goes into 0 0 times with a remainder of 0.
Put 0 as the next digit of the answer. 
Result so far: 43264.95625
Deduct 0 from 0 and we're left 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.

Step 15:
When dividing 0 by 640, we get 0 with a remainder of 0.
The number 0 becomes the next digit in our result. 
Result so far: 43264.95625
Subtracting 0 from 0 leaves us 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.

Our division results in 43264.95625 with a remaining 0.0.