We're dividing 95973561 by 640 
The aim is to understand the frequency of 640 in 95973561.

Step 1:
9 divided by 640 is 0 with a remainder of 9.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Subtracting 0 from 9 leaves us with 9.
Append the next digit (5) from the dividend to 9 and continue with: 95 / 640

Advancing to step 2:
95 divided by 640 is 0 with a remainder of 95.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Subtracting 0 from 95 leaves us with 95.
Take the next digit (9) from the dividend and append it to 95, then repeat: 959 / 640

On to step 3:
640 can be fit into 959 1 times, resulting in a remainder of 319.
The number 1 becomes the next digit in our result. 
Result so far: 1.0
Subtract 640 from 959 to get 319.
Bring next digit (7) of the dividend behind the 319 and repeat the process: 3197 / 640

Going ahead to step 4:
When dividing 3197 by 640, we get 4 with a remainder of 637.
Put 4 as the next digit of the answer. 
Result so far: 14.0
The remainder is 637 after subtracting 2560 from 3197.
Include the next digit (3) from the dividend after 637, then repeat: 6373 / 640

Moving on to step 5:
When dividing 6373 by 640, we get 9 with a remainder of 613.
Record the quotient 9 as the next digit in the result. 
Result so far: 149.0
Deduct 5760 from 6373 and we're left with 613.
Take the next digit (5) from the dividend and append it to 613, then repeat: 6135 / 640

Going ahead to step 6:
640 can be fit into 6135 9 times, resulting in a remainder of 375.
Write down 9 as next digit of the result. 
Result so far: 1499.0
Deduct 5760 from 6135 and we're left with 375.
Append the next digit (6) from the dividend to 375 and continue with: 3756 / 640

Going ahead to step 7:
When dividing 3756 by 640, we get 5 with a remainder of 556.
Record the quotient 5 as the next digit in the result. 
Result so far: 14995.0
The remainder is 556 after subtracting 3200 from 3756.
Grab the next digit (1) from the dividend, add it to 556, then carry on: 5561 / 640

Let's proceed to step 8:
5561 divided by 640 is 8 with a remainder of 441.
Record the quotient 8 as the next digit in the result. 
Result so far: 149958.0
Deduct 5120 from 5561 and we're left 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.

On to step 9:
640 can be fit into 4410 6 times, resulting in a remainder of 570.
The next digit of our result is 6. 
Result so far: 149958.6
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.

Moving on to step 10:
If we divide 5700 by 640, we get 8 and a remainder of 580.
Record the quotient 8 as the next digit in the result. 
Result so far: 149958.68
If we take 5120 away from 5700, 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.

On to step 11:
5800 divided by 640 is 9 with a remainder of 40.
Put 9 as the next digit of the answer. 
Result so far: 149958.689
If we take 5760 away from 5800, we end up with 40.
Since there are no more digits in the dividend, we add a zero to the remainder making it 400, and continue the process.

On to step 12:
640 can be fit into 400 0 times, resulting in a remainder of 400.
The next digit of our result is 0. 
Result so far: 149958.689
If we subtract 0 from 400, we get 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 13:
640 goes into 4000 6 times with a remainder of 160.
Record the quotient 6 as the next digit in the result. 
Result so far: 149958.68906
Subtract 3840 from 4000 to 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.

Moving on to step 14:
If we divide 1600 by 640, we get 2 and a remainder of 320.
Use 2 as the next digit of our solution. 
Result so far: 149958.689062
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 15:
3200 divided by 640 is 5 with a remainder of 0.
The number 5 becomes the next digit in our result. 
Result so far: 149958.6890625
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.

Going ahead to step 16:
640 goes into 0 0 times with a remainder of 0.
Write down 0 as next digit of the result. 
Result so far: 149958.6890625
The remainder is 0 after subtracting 0 from 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 149958.6890625 with a remaining 0.0.