We're dividing 89337401 by 640 
The aim is to understand the frequency of 640 in 89337401.

Going ahead to step 1:
If we divide 8 by 640, we get 0 and a remainder of 8.
Write down 0 as next digit of the result. 
Result so far: 0.0
Subtracting 0 from 8 leaves us with 8.
Include the next digit (9) from the dividend after 8, then repeat: 89 / 640

Let's proceed to step 2:
If we divide 89 by 640, we get 0 and a remainder of 89.
The next digit of our result is 0. 
Result so far: 0.0
Subtract 0 from 89 to get 89.
Include the next digit (3) from the dividend after 89, then repeat: 893 / 640

Advancing to step 3:
If we divide 893 by 640, we get 1 and a remainder of 253.
Write down 1 as next digit of the result. 
Result so far: 1.0
Subtracting 640 from 893 leaves us with 253.
Bring next digit (3) of the dividend behind the 253 and repeat the process: 2533 / 640

Step 4:
640 goes into 2533 3 times with a remainder of 613.
Write down 3 as next digit of the result. 
Result so far: 13.0
If we take 1920 away from 2533, we end up with 613.
Grab the next digit (7) from the dividend, add it to 613, then carry on: 6137 / 640

Let's proceed to step 5:
The number 640 fits into 6137 9 times, leaving a remainder of 377.
The next digit of our result is 9. 
Result so far: 139.0
Subtracting 5760 from 6137 leaves us with 377.
Grab the next digit (4) from the dividend, add it to 377, then carry on: 3774 / 640

Advancing to step 6:
3774 divided by 640 is 5 with a remainder of 574.
The number 5 becomes the next digit in our result. 
Result so far: 1395.0
If we subtract 3200 from 3774, we get 574.
Take the next digit (0) from the dividend and append it to 574, then repeat: 5740 / 640

Advancing to step 7:
5740 divided by 640 is 8 with a remainder of 620.
Use 8 as the next digit of our solution. 
Result so far: 13958.0
Deduct 5120 from 5740 and we're left with 620.
Fetch the next digit (1) from the dividend, attach it to 620 and continue: 6201 / 640

Moving on to step 8:
6201 divided by 640 is 9 with a remainder of 441.
The next digit of our result is 9. 
Result so far: 139589.0
If we take 5760 away from 6201, we end up with 441.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4410, and continue the process.

Advancing to step 9:
The number 640 fits into 4410 6 times, leaving a remainder of 570.
Put 6 as the next digit of the answer. 
Result so far: 139589.6
If we take 3840 away from 4410, we end up with 570.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5700, and continue the process.

On to step 10:
If we divide 5700 by 640, we get 8 and a remainder of 580.
The next digit of our result is 8. 
Result so far: 139589.68
The remainder is 580 after subtracting 5120 from 5700.
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 11:
640 goes into 5800 9 times with a remainder of 40.
Record the quotient 9 as the next digit in the result. 
Result so far: 139589.689
If we subtract 5760 from 5800, we 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.

Moving on to step 12:
640 can be fit into 400 0 times, resulting in a remainder of 400.
Use 0 as the next digit of our solution. 
Result so far: 139589.689
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.

Moving on to step 13:
The number 640 fits into 4000 6 times, leaving a remainder of 160.
The next digit of our result is 6. 
Result so far: 139589.68906
Subtracting 3840 from 4000 leaves us 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.

On to step 14:
1600 divided by 640 is 2 with a remainder of 320.
Put 2 as the next digit of the answer. 
Result so far: 139589.689062
Deduct 1280 from 1600 and we're left 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.

Let's proceed to step 15:
3200 divided by 640 is 5 with a remainder of 0.
The next digit of our result is 5. 
Result so far: 139589.6890625
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.

Moving on to step 16:
If we divide 0 by 640, we get 0 and a remainder of 0.
The number 0 becomes the next digit in our result. 
Result so far: 139589.6890625
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.

In conclusion, the division gives 139589.6890625 with a balance of 0.0.