We're dividing 67145642 by 641 
The aim is to understand the frequency of 641 in 67145642.

Going ahead to step 1:
When dividing 6 by 641, we get 0 with a remainder of 6.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
If we take 0 away from 6, we end up with 6.
Append the next digit (7) from the dividend to 6 and continue with: 67 / 641

Moving on to step 2:
641 goes into 67 0 times with a remainder of 67.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
The remainder is 67 after subtracting 0 from 67.
Take the next digit (1) from the dividend and append it to 67, then repeat: 671 / 641

On to step 3:
671 divided by 641 is 1 with a remainder of 30.
Use 1 as the next digit of our solution. 
Result so far: 1.0
Subtracting 641 from 671 leaves us with 30.
Grab the next digit (4) from the dividend, add it to 30, then carry on: 304 / 641

Let's proceed to step 4:
304 divided by 641 is 0 with a remainder of 304.
The number 0 becomes the next digit in our result. 
Result so far: 10.0
Subtract 0 from 304 to get 304.
Fetch the next digit (5) from the dividend, attach it to 304 and continue: 3045 / 641

Step 5:
When dividing 3045 by 641, we get 4 with a remainder of 481.
The next digit of our result is 4. 
Result so far: 104.0
Deduct 2564 from 3045 and we're left with 481.
Append the next digit (6) from the dividend to 481 and continue with: 4816 / 641

Going ahead to step 6:
641 goes into 4816 7 times with a remainder of 329.
The number 7 becomes the next digit in our result. 
Result so far: 1047.0
The remainder is 329 after subtracting 4487 from 4816.
Include the next digit (4) from the dividend after 329, then repeat: 3294 / 641

Moving on to step 7:
641 goes into 3294 5 times with a remainder of 89.
The next digit of our result is 5. 
Result so far: 10475.0
If we subtract 3205 from 3294, we get 89.
Take the next digit (2) from the dividend and append it to 89, then repeat: 892 / 641

Advancing to step 8:
641 goes into 892 1 times with a remainder of 251.
The next digit of our result is 1. 
Result so far: 104751.0
Subtracting 641 from 892 leaves us with 251.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2510, and continue the process.

Step 9:
The number 641 fits into 2510 3 times, leaving a remainder of 587.
Record the quotient 3 as the next digit in the result. 
Result so far: 104751.3
If we take 1923 away from 2510, we end up with 587.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5870, and continue the process.

Step 10:
The number 641 fits into 5870 9 times, leaving a remainder of 101.
Record the quotient 9 as the next digit in the result. 
Result so far: 104751.39
Deduct 5769 from 5870 and we're left with 101.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1010, and continue the process.

On to step 11:
1010 divided by 641 is 1 with a remainder of 369.
The number 1 becomes the next digit in our result. 
Result so far: 104751.391
Subtract 641 from 1010 to get 369.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3690, and continue the process.

Let's proceed to step 12:
641 can be fit into 3690 5 times, resulting in a remainder of 485.
Write down 5 as next digit of the result. 
Result so far: 104751.3915
If we subtract 3205 from 3690, we get 485.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4850, and continue the process.

Advancing to step 13:
When dividing 4850 by 641, we get 7 with a remainder of 363.
Record the quotient 7 as the next digit in the result. 
Result so far: 104751.39157
The remainder is 363 after subtracting 4487 from 4850.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3630, and continue the process.

On to step 14:
641 goes into 3630 5 times with a remainder of 425.
Use 5 as the next digit of our solution. 
Result so far: 104751.391575
The remainder is 425 after subtracting 3205 from 3630.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4250, and continue the process.

Going ahead to step 15:
If we divide 4250 by 641, we get 6 and a remainder of 404.
Use 6 as the next digit of our solution. 
Result so far: 104751.3915756
Subtracting 3846 from 4250 leaves us with 404.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4040, and continue the process.

Step 16:
If we divide 4040 by 641, we get 6 and a remainder of 194.
Record the quotient 6 as the next digit in the result. 
Result so far: 104751.39157566
Subtract 3846 from 4040 to get 194.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1940, and continue the process.

The final result is 104751.39157566 with a remainder of 1.94e-07.