We look at the division of 630901 by 38 
The aim is to understand the frequency of 38 in 630901.

Advancing to step 1:
If we divide 6 by 38, we get 0 and a remainder of 6.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Deduct 0 from 6 and we're left with 6.
Append the next digit (3) from the dividend to 6 and continue with: 63 / 38

Going ahead to step 2:
38 can be fit into 63 1 times, resulting in a remainder of 25.
The number 1 becomes the next digit in our result. 
Result so far: 1.0
Subtract 38 from 63 to get 25.
Include the next digit (0) from the dividend after 25, then repeat: 250 / 38

Moving on to step 3:
The number 38 fits into 250 6 times, leaving a remainder of 22.
The next digit of our result is 6. 
Result so far: 16.0
Deduct 228 from 250 and we're left with 22.
Grab the next digit (9) from the dividend, add it to 22, then carry on: 229 / 38

Going ahead to step 4:
229 divided by 38 is 6 with a remainder of 1.
Put 6 as the next digit of the answer. 
Result so far: 166.0
Deduct 228 from 229 and we're left with 1.
Take the next digit (0) from the dividend and append it to 1, then repeat: 10 / 38

Let's proceed to step 5:
10 divided by 38 is 0 with a remainder of 10.
The next digit of our result is 0. 
Result so far: 1660.0
The remainder is 10 after subtracting 0 from 10.
Append the next digit (1) from the dividend to 10 and continue with: 101 / 38

Advancing to step 6:
When dividing 101 by 38, we get 2 with a remainder of 25.
Write down 2 as next digit of the result. 
Result so far: 16602.0
Subtract 76 from 101 to get 25.
Since there are no more digits in the dividend, we add a zero to the remainder making it 250, and continue the process.

Let's proceed to step 7:
If we divide 250 by 38, we get 6 and a remainder of 22.
Put 6 as the next digit of the answer. 
Result so far: 16602.6
If we take 228 away from 250, we end up with 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 8:
38 goes into 220 5 times with a remainder of 30.
Use 5 as the next digit of our solution. 
Result so far: 16602.65
If we take 190 away from 220, 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 9:
If we divide 300 by 38, we get 7 and a remainder of 34.
The number 7 becomes the next digit in our result. 
Result so far: 16602.657
The remainder is 34 after subtracting 266 from 300.
Since there are no more digits in the dividend, we add a zero to the remainder making it 340, and continue the process.

Moving on to step 10:
The number 38 fits into 340 8 times, leaving a remainder of 36.
The number 8 becomes the next digit in our result. 
Result so far: 16602.6578
The remainder is 36 after subtracting 304 from 340.
Since there are no more digits in the dividend, we add a zero to the remainder making it 360, and continue the process.

Let's proceed to step 11:
The number 38 fits into 360 9 times, leaving a remainder of 18.
Use 9 as the next digit of our solution. 
Result so far: 16602.65789
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.

Advancing to step 12:
If we divide 180 by 38, we get 4 and a remainder of 28.
Put 4 as the next digit of the answer. 
Result so far: 16602.657894
Subtract 152 from 180 to 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.

Advancing to step 13:
38 goes into 280 7 times with a remainder of 14.
Write down 7 as next digit of the result. 
Result so far: 16602.6578947
Deduct 266 from 280 and we're left with 14.
Since there are no more digits in the dividend, we add a zero to the remainder making it 140, and continue the process.

Moving on to step 14:
38 goes into 140 3 times with a remainder of 26.
Use 3 as the next digit of our solution. 
Result so far: 16602.65789473
Subtract 114 from 140 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.

Our division results in 16602.65789473 with a remaining 2.6e-08.