11390238 divided by 538 
The aim is to understand the frequency of 538 in 11390238.

Step 1:
When dividing 1 by 538, we get 0 with a remainder of 1.
Write down 0 as next digit of the result. 
Result so far: 0.0
The remainder is 1 after subtracting 0 from 1.
Take the next digit (1) from the dividend and append it to 1, then repeat: 11 / 538

On to step 2:
The number 538 fits into 11 0 times, leaving a remainder of 11.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
If we subtract 0 from 11, we get 11.
Include the next digit (3) from the dividend after 11, then repeat: 113 / 538

Moving on to step 3:
538 can be fit into 113 0 times, resulting in a remainder of 113.
The next digit of our result is 0. 
Result so far: 0.0
Deduct 0 from 113 and we're left with 113.
Bring next digit (9) of the dividend behind the 113 and repeat the process: 1139 / 538

Moving on to step 4:
When dividing 1139 by 538, we get 2 with a remainder of 63.
Write down 2 as next digit of the result. 
Result so far: 2.0
The remainder is 63 after subtracting 1076 from 1139.
Fetch the next digit (0) from the dividend, attach it to 63 and continue: 630 / 538

Advancing to step 5:
When dividing 630 by 538, we get 1 with a remainder of 92.
The number 1 becomes the next digit in our result. 
Result so far: 21.0
If we take 538 away from 630, we end up with 92.
Append the next digit (2) from the dividend to 92 and continue with: 922 / 538

Going ahead to step 6:
538 goes into 922 1 times with a remainder of 384.
The number 1 becomes the next digit in our result. 
Result so far: 211.0
If we take 538 away from 922, we end up with 384.
Grab the next digit (3) from the dividend, add it to 384, then carry on: 3843 / 538

Advancing to step 7:
If we divide 3843 by 538, we get 7 and a remainder of 77.
The number 7 becomes the next digit in our result. 
Result so far: 2117.0
Deduct 3766 from 3843 and we're left with 77.
Fetch the next digit (8) from the dividend, attach it to 77 and continue: 778 / 538

Step 8:
538 can be fit into 778 1 times, resulting in a remainder of 240.
Use 1 as the next digit of our solution. 
Result so far: 21171.0
If we subtract 538 from 778, we get 240.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2400, and continue the process.

Advancing to step 9:
If we divide 2400 by 538, we get 4 and a remainder of 248.
Use 4 as the next digit of our solution. 
Result so far: 21171.4
The remainder is 248 after subtracting 2152 from 2400.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2480, and continue the process.

Advancing to step 10:
If we divide 2480 by 538, we get 4 and a remainder of 328.
The next digit of our result is 4. 
Result so far: 21171.44
Deduct 2152 from 2480 and we're left with 328.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3280, and continue the process.

The final result is 21171.44 with a remainder of 0.328.