Let's divide 644682 by 42
The aim is to understand the frequency of 42 in 644682.

Moving on to step 1:
The number 42 fits into 6 0 times, leaving a remainder of 6.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Subtracting 0 from 6 leaves us with 6.
Bring next digit (4) of the dividend behind the 6 and repeat the process: 64 / 42

Moving on to step 2:
The number 42 fits into 64 1 times, leaving a remainder of 22.
The next digit of our result is 1. 
Result so far: 1.0
If we subtract 42 from 64, we get 22.
Append the next digit (4) from the dividend to 22 and continue with: 224 / 42

On to step 3:
The number 42 fits into 224 5 times, leaving a remainder of 14.
Use 5 as the next digit of our solution. 
Result so far: 15.0
Subtract 210 from 224 to get 14.
Bring next digit (6) of the dividend behind the 14 and repeat the process: 146 / 42

Let's proceed to step 4:
146 divided by 42 is 3 with a remainder of 20.
The next digit of our result is 3. 
Result so far: 153.0
Subtract 126 from 146 to get 20.
Append the next digit (8) from the dividend to 20 and continue with: 208 / 42

Advancing to step 5:
208 divided by 42 is 4 with a remainder of 40.
Record the quotient 4 as the next digit in the result. 
Result so far: 1534.0
If we subtract 168 from 208, we get 40.
Take the next digit (2) from the dividend and append it to 40, then repeat: 402 / 42

Let's proceed to step 6:
If we divide 402 by 42, we get 9 and a remainder of 24.
Record the quotient 9 as the next digit in the result. 
Result so far: 15349.0
If we take 378 away from 402, we end up with 24.
Since there are no more digits in the dividend, we add a zero to the remainder making it 240, and continue the process.

Let's proceed to step 7:
If we divide 240 by 42, we get 5 and a remainder of 30.
The number 5 becomes the next digit in our result. 
Result so far: 15349.5
Subtracting 210 from 240 leaves us with 30.
Since there are no more digits in the dividend, we add a zero to the remainder making it 300, and continue the process.

Moving on to step 8:
If we divide 300 by 42, we get 7 and a remainder of 6.
Write down 7 as next digit of the result. 
Result so far: 15349.57
Subtract 294 from 300 to get 6.
Since there are no more digits in the dividend, we add a zero to the remainder making it 60, and continue the process.

Step 9:
42 can be fit into 60 1 times, resulting in a remainder of 18.
The next digit of our result is 1. 
Result so far: 15349.571
If we take 42 away from 60, we end up with 18.
Since there are no more digits in the dividend, we add a zero to the remainder making it 180, and continue the process.

Step 10:
If we divide 180 by 42, we get 4 and a remainder of 12.
Put 4 as the next digit of the answer. 
Result so far: 15349.5714
The remainder is 12 after subtracting 168 from 180.
Since there are no more digits in the dividend, we add a zero to the remainder making it 120, and continue the process.

Step 11:
42 goes into 120 2 times with a remainder of 36.
Use 2 as the next digit of our solution. 
Result so far: 15349.57142
The remainder is 36 after subtracting 84 from 120.
Since there are no more digits in the dividend, we add a zero to the remainder making it 360, and continue the process.

Moving on to step 12:
If we divide 360 by 42, we get 8 and a remainder of 24.
Record the quotient 8 as the next digit in the result. 
Result so far: 15349.571428
The remainder is 24 after subtracting 336 from 360.
Since there are no more digits in the dividend, we add a zero to the remainder making it 240, and continue the process.

Let's proceed to step 13:
240 divided by 42 is 5 with a remainder of 30.
Write down 5 as next digit of the result. 
Result so far: 15349.5714285
If we take 210 away from 240, we end up with 30.
Since there are no more digits in the dividend, we add a zero to the remainder making it 300, and continue the process.

Step 14:
42 can be fit into 300 7 times, resulting in a remainder of 6.
Put 7 as the next digit of the answer. 
Result so far: 15349.57142857
Deduct 294 from 300 and we're left with 6.
Since there are no more digits in the dividend, we add a zero to the remainder making it 60, and continue the process.

The final outcome is 15349.57142857, with a leftover of 6e-09.