We look at the division of 420406 by 38 
The aim is to understand the frequency of 38 in 420406.

On to step 1:
38 can be fit into 4 0 times, resulting in a remainder of 4.
Put 0 as the next digit of the answer. 
Result so far: 0.0
The remainder is 4 after subtracting 0 from 4.
Include the next digit (2) from the dividend after 4, then repeat: 42 / 38

Moving on to step 2:
42 divided by 38 is 1 with a remainder of 4.
The number 1 becomes the next digit in our result. 
Result so far: 1.0
Subtract 38 from 42 to get 4.
Grab the next digit (0) from the dividend, add it to 4, then carry on: 40 / 38

On to step 3:
38 can be fit into 40 1 times, resulting in a remainder of 2.
The next digit of our result is 1. 
Result so far: 11.0
Subtracting 38 from 40 leaves us with 2.
Append the next digit (4) from the dividend to 2 and continue with: 24 / 38

Advancing to step 4:
38 can be fit into 24 0 times, resulting in a remainder of 24.
The number 0 becomes the next digit in our result. 
Result so far: 110.0
Subtracting 0 from 24 leaves us with 24.
Include the next digit (0) from the dividend after 24, then repeat: 240 / 38

Let's proceed to step 5:
If we divide 240 by 38, we get 6 and a remainder of 12.
Use 6 as the next digit of our solution. 
Result so far: 1106.0
Deduct 228 from 240 and we're left with 12.
Bring next digit (6) of the dividend behind the 12 and repeat the process: 126 / 38

Going ahead to step 6:
The number 38 fits into 126 3 times, leaving a remainder of 12.
Record the quotient 3 as the next digit in the result. 
Result so far: 11063.0
If we take 114 away from 126, we end up with 12.
Since there are no more digits in the dividend, we add a zero to the remainder making it 120, and continue the process.

Moving on to step 7:
When dividing 120 by 38, we get 3 with a remainder of 6.
The next digit of our result is 3. 
Result so far: 11063.3
Deduct 114 from 120 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.

Moving on to step 8:
The number 38 fits into 60 1 times, leaving a remainder of 22.
Write down 1 as next digit of the result. 
Result so far: 11063.31
If we subtract 38 from 60, we 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.

On to step 9:
The number 38 fits into 220 5 times, leaving a remainder of 30.
Put 5 as the next digit of the answer. 
Result so far: 11063.315
Subtract 190 from 220 to get 30.
Since there are no more digits in the dividend, we add a zero to the remainder making it 300, and continue the process.

Going ahead to step 10:
38 can be fit into 300 7 times, resulting in a remainder of 34.
Record the quotient 7 as the next digit in the result. 
Result so far: 11063.3157
If we subtract 266 from 300, we get 34.
Since there are no more digits in the dividend, we add a zero to the remainder making it 340, and continue the process.

Let's proceed to step 11:
When dividing 340 by 38, we get 8 with a remainder of 36.
The number 8 becomes the next digit in our result. 
Result so far: 11063.31578
Subtracting 304 from 340 leaves us with 36.
Since there are no more digits in the dividend, we add a zero to the remainder making it 360, and continue the process.

Advancing to step 12:
When dividing 360 by 38, we get 9 with a remainder of 18.
The next digit of our result is 9. 
Result so far: 11063.315789
Subtract 342 from 360 to get 18.
Since there are no more digits in the dividend, we add a zero to the remainder making it 180, and continue the process.

Moving on to step 13:
If we divide 180 by 38, we get 4 and a remainder of 28.
Write down 4 as next digit of the result. 
Result so far: 11063.3157894
If we subtract 152 from 180, we get 28.
Since there are no more digits in the dividend, we add a zero to the remainder making it 280, and continue the process.

Going ahead to step 14:
38 goes into 280 7 times with a remainder of 14.
Write down 7 as next digit of the result. 
Result so far: 11063.31578947
Subtract 266 from 280 to get 14.
Since there are no more digits in the dividend, we add a zero to the remainder making it 140, and continue the process.

The final result is 11063.31578947 with a remainder of 1.4e-08.