We're dividing 97391368 by 641 
The aim is to understand the frequency of 641 in 97391368.

Advancing to step 1:
641 can be fit into 9 0 times, resulting in a remainder of 9.
The next digit of our result is 0. 
Result so far: 0.0
If we subtract 0 from 9, we get 9.
Bring next digit (7) of the dividend behind the 9 and repeat the process: 97 / 641

Advancing to step 2:
If we divide 97 by 641, we get 0 and a remainder of 97.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
The remainder is 97 after subtracting 0 from 97.
Fetch the next digit (3) from the dividend, attach it to 97 and continue: 973 / 641

Going ahead to step 3:
When dividing 973 by 641, we get 1 with a remainder of 332.
Use 1 as the next digit of our solution. 
Result so far: 1.0
The remainder is 332 after subtracting 641 from 973.
Grab the next digit (9) from the dividend, add it to 332, then carry on: 3329 / 641

Moving on to step 4:
3329 divided by 641 is 5 with a remainder of 124.
Use 5 as the next digit of our solution. 
Result so far: 15.0
Subtract 3205 from 3329 to get 124.
Bring next digit (1) of the dividend behind the 124 and repeat the process: 1241 / 641

Step 5:
If we divide 1241 by 641, we get 1 and a remainder of 600.
Put 1 as the next digit of the answer. 
Result so far: 151.0
The remainder is 600 after subtracting 641 from 1241.
Bring next digit (3) of the dividend behind the 600 and repeat the process: 6003 / 641

Step 6:
641 can be fit into 6003 9 times, resulting in a remainder of 234.
Put 9 as the next digit of the answer. 
Result so far: 1519.0
Subtract 5769 from 6003 to get 234.
Fetch the next digit (6) from the dividend, attach it to 234 and continue: 2346 / 641

On to step 7:
The number 641 fits into 2346 3 times, leaving a remainder of 423.
The number 3 becomes the next digit in our result. 
Result so far: 15193.0
The remainder is 423 after subtracting 1923 from 2346.
Append the next digit (8) from the dividend to 423 and continue with: 4238 / 641

Going ahead to step 8:
If we divide 4238 by 641, we get 6 and a remainder of 392.
Use 6 as the next digit of our solution. 
Result so far: 151936.0
Deduct 3846 from 4238 and we're left with 392.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3920, and continue the process.

Advancing to step 9:
3920 divided by 641 is 6 with a remainder of 74.
Write down 6 as next digit of the result. 
Result so far: 151936.6
Subtracting 3846 from 3920 leaves us with 74.
Since there are no more digits in the dividend, we add a zero to the remainder making it 740, and continue the process.

Let's proceed to step 10:
641 goes into 740 1 times with a remainder of 99.
The number 1 becomes the next digit in our result. 
Result so far: 151936.61
Deduct 641 from 740 and we're left with 99.
Since there are no more digits in the dividend, we add a zero to the remainder making it 990, and continue the process.

Step 11:
641 goes into 990 1 times with a remainder of 349.
Put 1 as the next digit of the answer. 
Result so far: 151936.611
Subtract 641 from 990 to get 349.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3490, and continue the process.

The final result is 151936.611 with a remainder of 0.0349.