45347791 divided by 641 
The aim is to understand the frequency of 641 in 45347791.

Step 1:
4 divided by 641 is 0 with a remainder of 4.
The next digit of our result is 0. 
Result so far: 0.0
Deduct 0 from 4 and we're left with 4.
Take the next digit (5) from the dividend and append it to 4, then repeat: 45 / 641

Going ahead to step 2:
641 can be fit into 45 0 times, resulting in a remainder of 45.
The next digit of our result is 0. 
Result so far: 0.0
Subtracting 0 from 45 leaves us with 45.
Append the next digit (3) from the dividend to 45 and continue with: 453 / 641

Moving on to step 3:
When dividing 453 by 641, we get 0 with a remainder of 453.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Subtract 0 from 453 to get 453.
Bring next digit (4) of the dividend behind the 453 and repeat the process: 4534 / 641

Advancing to step 4:
The number 641 fits into 4534 7 times, leaving a remainder of 47.
The number 7 becomes the next digit in our result. 
Result so far: 7.0
If we take 4487 away from 4534, we end up with 47.
Include the next digit (7) from the dividend after 47, then repeat: 477 / 641

Going ahead to step 5:
477 divided by 641 is 0 with a remainder of 477.
The next digit of our result is 0. 
Result so far: 70.0
Subtracting 0 from 477 leaves us with 477.
Fetch the next digit (7) from the dividend, attach it to 477 and continue: 4777 / 641

On to step 6:
641 can be fit into 4777 7 times, resulting in a remainder of 290.
The next digit of our result is 7. 
Result so far: 707.0
The remainder is 290 after subtracting 4487 from 4777.
Fetch the next digit (9) from the dividend, attach it to 290 and continue: 2909 / 641

Advancing to step 7:
641 can be fit into 2909 4 times, resulting in a remainder of 345.
The next digit of our result is 4. 
Result so far: 7074.0
Deduct 2564 from 2909 and we're left with 345.
Append the next digit (1) from the dividend to 345 and continue with: 3451 / 641

On to step 8:
641 goes into 3451 5 times with a remainder of 246.
Record the quotient 5 as the next digit in the result. 
Result so far: 70745.0
If we take 3205 away from 3451, we end up with 246.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2460, and continue the process.

On to step 9:
641 can be fit into 2460 3 times, resulting in a remainder of 537.
Put 3 as the next digit of the answer. 
Result so far: 70745.3
If we take 1923 away from 2460, we end up with 537.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5370, and continue the process.

Going ahead to step 10:
When dividing 5370 by 641, we get 8 with a remainder of 242.
Use 8 as the next digit of our solution. 
Result so far: 70745.38
If we take 5128 away from 5370, we end up with 242.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2420, and continue the process.

Advancing to step 11:
The number 641 fits into 2420 3 times, leaving a remainder of 497.
The next digit of our result is 3. 
Result so far: 70745.383
If we subtract 1923 from 2420, we get 497.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4970, and continue the process.

Step 12:
641 goes into 4970 7 times with a remainder of 483.
Use 7 as the next digit of our solution. 
Result so far: 70745.3837
If we take 4487 away from 4970, we end up with 483.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4830, and continue the process.

On to step 13:
If we divide 4830 by 641, we get 7 and a remainder of 343.
Put 7 as the next digit of the answer. 
Result so far: 70745.38377
The remainder is 343 after subtracting 4487 from 4830.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3430, and continue the process.

The quotient of the division is 70745.38377, and the remainder is 0.000343.