906223 divided by 42 
The aim is to understand the frequency of 42 in 906223.

Moving on to step 1:
When dividing 9 by 42, we get 0 with a remainder of 9.
The next digit of our result is 0. 
Result so far: 0.0
If we subtract 0 from 9, we get 9.
Grab the next digit (0) from the dividend, add it to 9, then carry on: 90 / 42

Step 2:
90 divided by 42 is 2 with a remainder of 6.
The number 2 becomes the next digit in our result. 
Result so far: 2.0
If we subtract 84 from 90, we get 6.
Include the next digit (6) from the dividend after 6, then repeat: 66 / 42

Going ahead to step 3:
When dividing 66 by 42, we get 1 with a remainder of 24.
Use 1 as the next digit of our solution. 
Result so far: 21.0
Subtract 42 from 66 to get 24.
Fetch the next digit (2) from the dividend, attach it to 24 and continue: 242 / 42

On to step 4:
If we divide 242 by 42, we get 5 and a remainder of 32.
Write down 5 as next digit of the result. 
Result so far: 215.0
If we subtract 210 from 242, we get 32.
Bring next digit (2) of the dividend behind the 32 and repeat the process: 322 / 42

Let's proceed to step 5:
322 divided by 42 is 7 with a remainder of 28.
Put 7 as the next digit of the answer. 
Result so far: 2157.0
Deduct 294 from 322 and we're left with 28.
Include the next digit (3) from the dividend after 28, then repeat: 283 / 42

Advancing to step 6:
283 divided by 42 is 6 with a remainder of 31.
Use 6 as the next digit of our solution. 
Result so far: 21576.0
If we take 252 away from 283, we end up with 31.
Since there are no more digits in the dividend, we add a zero to the remainder making it 310, and continue the process.

Going ahead to step 7:
42 can be fit into 310 7 times, resulting in a remainder of 16.
Put 7 as the next digit of the answer. 
Result so far: 21576.7
The remainder is 16 after subtracting 294 from 310.
Since there are no more digits in the dividend, we add a zero to the remainder making it 160, and continue the process.

Step 8:
42 goes into 160 3 times with a remainder of 34.
The next digit of our result is 3. 
Result so far: 21576.73
The remainder is 34 after subtracting 126 from 160.
Since there are no more digits in the dividend, we add a zero to the remainder making it 340, and continue the process.

Advancing to step 9:
340 divided by 42 is 8 with a remainder of 4.
The next digit of our result is 8. 
Result so far: 21576.738
Subtract 336 from 340 to get 4.
Since there are no more digits in the dividend, we add a zero to the remainder making it 40, and continue the process.

Moving on to step 10:
If we divide 40 by 42, we get 0 and a remainder of 40.
Use 0 as the next digit of our solution. 
Result so far: 21576.738
Subtract 0 from 40 to get 40.
Since there are no more digits in the dividend, we add a zero to the remainder making it 400, and continue the process.

Step 11:
400 divided by 42 is 9 with a remainder of 22.
Write down 9 as next digit of the result. 
Result so far: 21576.73809
Subtract 378 from 400 to get 22.
Since there are no more digits in the dividend, we add a zero to the remainder making it 220, and continue the process.

Going ahead to step 12:
The number 42 fits into 220 5 times, leaving a remainder of 10.
Put 5 as the next digit of the answer. 
Result so far: 21576.738095
Subtracting 210 from 220 leaves us with 10.
Since there are no more digits in the dividend, we add a zero to the remainder making it 100, and continue the process.

On to step 13:
42 goes into 100 2 times with a remainder of 16.
Put 2 as the next digit of the answer. 
Result so far: 21576.7380952
If we take 84 away from 100, we end up with 16.
Since there are no more digits in the dividend, we add a zero to the remainder making it 160, and continue the process.

Advancing to step 14:
160 divided by 42 is 3 with a remainder of 34.
Put 3 as the next digit of the answer. 
Result so far: 21576.73809523
Deduct 126 from 160 and we're left with 34.
Since there are no more digits in the dividend, we add a zero to the remainder making it 340, and continue the process.

In conclusion, the division gives 21576.73809523 with a balance of 3.4e-08.