We look at the division of 32931529 by 641 
The aim is to understand the frequency of 641 in 32931529.

Let's proceed to step 1:
When dividing 3 by 641, we get 0 with a remainder of 3.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Deduct 0 from 3 and we're left with 3.
Take the next digit (2) from the dividend and append it to 3, then repeat: 32 / 641

Let's proceed to step 2:
If we divide 32 by 641, we get 0 and a remainder of 32.
Use 0 as the next digit of our solution. 
Result so far: 0.0
If we take 0 away from 32, we end up with 32.
Include the next digit (9) from the dividend after 32, then repeat: 329 / 641

Let's proceed to step 3:
641 goes into 329 0 times with a remainder of 329.
The next digit of our result is 0. 
Result so far: 0.0
The remainder is 329 after subtracting 0 from 329.
Bring next digit (3) of the dividend behind the 329 and repeat the process: 3293 / 641

Going ahead to step 4:
641 can be fit into 3293 5 times, resulting in a remainder of 88.
Record the quotient 5 as the next digit in the result. 
Result so far: 5.0
Subtract 3205 from 3293 to get 88.
Append the next digit (1) from the dividend to 88 and continue with: 881 / 641

Let's proceed to step 5:
881 divided by 641 is 1 with a remainder of 240.
Write down 1 as next digit of the result. 
Result so far: 51.0
Deduct 641 from 881 and we're left with 240.
Grab the next digit (5) from the dividend, add it to 240, then carry on: 2405 / 641

Going ahead to step 6:
When dividing 2405 by 641, we get 3 with a remainder of 482.
Use 3 as the next digit of our solution. 
Result so far: 513.0
The remainder is 482 after subtracting 1923 from 2405.
Bring next digit (2) of the dividend behind the 482 and repeat the process: 4822 / 641

Let's proceed to step 7:
641 can be fit into 4822 7 times, resulting in a remainder of 335.
Put 7 as the next digit of the answer. 
Result so far: 5137.0
If we take 4487 away from 4822, we end up with 335.
Fetch the next digit (9) from the dividend, attach it to 335 and continue: 3359 / 641

Let's proceed to step 8:
641 goes into 3359 5 times with a remainder of 154.
The next digit of our result is 5. 
Result so far: 51375.0
Subtract 3205 from 3359 to get 154.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1540, and continue the process.

On to step 9:
If we divide 1540 by 641, we get 2 and a remainder of 258.
Put 2 as the next digit of the answer. 
Result so far: 51375.2
If we take 1282 away from 1540, we end up with 258.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2580, and continue the process.

Let's proceed to step 10:
641 can be fit into 2580 4 times, resulting in a remainder of 16.
Write down 4 as next digit of the result. 
Result so far: 51375.24
If we subtract 2564 from 2580, we get 16.
Since there are no more digits in the dividend, we add a zero to the remainder making it 160, and continue the process.

Moving on to step 11:
If we divide 160 by 641, we get 0 and a remainder of 160.
Record the quotient 0 as the next digit in the result. 
Result so far: 51375.24
If we take 0 away from 160, 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.

Moving on to step 12:
If we divide 1600 by 641, we get 2 and a remainder of 318.
Put 2 as the next digit of the answer. 
Result so far: 51375.2402
The remainder is 318 after subtracting 1282 from 1600.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3180, and continue the process.

On to step 13:
641 goes into 3180 4 times with a remainder of 616.
Put 4 as the next digit of the answer. 
Result so far: 51375.24024
Deduct 2564 from 3180 and we're left with 616.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6160, and continue the process.

On to step 14:
When dividing 6160 by 641, we get 9 with a remainder of 391.
The number 9 becomes the next digit in our result. 
Result so far: 51375.240249
The remainder is 391 after subtracting 5769 from 6160.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3910, and continue the process.

Going ahead to step 15:
The number 641 fits into 3910 6 times, leaving a remainder of 64.
Use 6 as the next digit of our solution. 
Result so far: 51375.2402496
Subtracting 3846 from 3910 leaves us with 64.
Since there are no more digits in the dividend, we add a zero to the remainder making it 640, and continue the process.

On to step 16:
640 divided by 641 is 0 with a remainder of 640.
The next digit of our result is 0. 
Result so far: 51375.2402496
Subtracting 0 from 640 leaves us with 640.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6400, and continue the process.

After the division, we end up with 51375.2402496 and a remainder of 6.4e-07.