819458 divided by 42 
The aim is to understand the frequency of 42 in 819458.

On to step 1:
42 goes into 8 0 times with a remainder of 8.
Write down 0 as next digit of the result. 
Result so far: 0.0
Subtract 0 from 8 to get 8.
Take the next digit (1) from the dividend and append it to 8, then repeat: 81 / 42

Let's proceed to step 2:
When dividing 81 by 42, we get 1 with a remainder of 39.
Put 1 as the next digit of the answer. 
Result so far: 1.0
The remainder is 39 after subtracting 42 from 81.
Bring next digit (9) of the dividend behind the 39 and repeat the process: 399 / 42

Advancing to step 3:
42 can be fit into 399 9 times, resulting in a remainder of 21.
Use 9 as the next digit of our solution. 
Result so far: 19.0
Subtract 378 from 399 to get 21.
Take the next digit (4) from the dividend and append it to 21, then repeat: 214 / 42

Going ahead to step 4:
214 divided by 42 is 5 with a remainder of 4.
Use 5 as the next digit of our solution. 
Result so far: 195.0
If we take 210 away from 214, we end up with 4.
Bring next digit (5) of the dividend behind the 4 and repeat the process: 45 / 42

On to step 5:
45 divided by 42 is 1 with a remainder of 3.
Write down 1 as next digit of the result. 
Result so far: 1951.0
Subtracting 42 from 45 leaves us with 3.
Include the next digit (8) from the dividend after 3, then repeat: 38 / 42

Let's proceed to step 6:
If we divide 38 by 42, we get 0 and a remainder of 38.
Use 0 as the next digit of our solution. 
Result so far: 19510.0
Subtract 0 from 38 to get 38.
Since there are no more digits in the dividend, we add a zero to the remainder making it 380, and continue the process.

Moving on to step 7:
380 divided by 42 is 9 with a remainder of 2.
The next digit of our result is 9. 
Result so far: 19510.9
Subtract 378 from 380 to get 2.
Since there are no more digits in the dividend, we add a zero to the remainder making it 20, and continue the process.

Advancing to step 8:
42 can be fit into 20 0 times, resulting in a remainder of 20.
The number 0 becomes the next digit in our result. 
Result so far: 19510.9
The remainder is 20 after subtracting 0 from 20.
Since there are no more digits in the dividend, we add a zero to the remainder making it 200, and continue the process.

Going ahead to step 9:
42 goes into 200 4 times with a remainder of 32.
Put 4 as the next digit of the answer. 
Result so far: 19510.904
The remainder is 32 after subtracting 168 from 200.
Since there are no more digits in the dividend, we add a zero to the remainder making it 320, and continue the process.

Step 10:
If we divide 320 by 42, we get 7 and a remainder of 26.
The number 7 becomes the next digit in our result. 
Result so far: 19510.9047
Subtract 294 from 320 to get 26.
Since there are no more digits in the dividend, we add a zero to the remainder making it 260, and continue the process.

On to step 11:
If we divide 260 by 42, we get 6 and a remainder of 8.
Use 6 as the next digit of our solution. 
Result so far: 19510.90476
If we take 252 away from 260, we end up with 8.
Since there are no more digits in the dividend, we add a zero to the remainder making it 80, and continue the process.

Step 12:
42 can be fit into 80 1 times, resulting in a remainder of 38.
The next digit of our result is 1. 
Result so far: 19510.904761
The remainder is 38 after subtracting 42 from 80.
Since there are no more digits in the dividend, we add a zero to the remainder making it 380, and continue the process.

Step 13:
380 divided by 42 is 9 with a remainder of 2.
Put 9 as the next digit of the answer. 
Result so far: 19510.9047619
Subtract 378 from 380 to get 2.
Since there are no more digits in the dividend, we add a zero to the remainder making it 20, and continue the process.

On to step 14:
If we divide 20 by 42, we get 0 and a remainder of 20.
Use 0 as the next digit of our solution. 
Result so far: 19510.9047619
Deduct 0 from 20 and we're left with 20.
Since there are no more digits in the dividend, we add a zero to the remainder making it 200, and continue the process.

In conclusion, the division gives 19510.9047619 with a balance of 2e-08.