13580265 ÷ 538 
The aim is to understand the frequency of 538 in 13580265.

Moving on to step 1:
538 can be fit into 1 0 times, resulting in a remainder of 1.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Subtract 0 from 1 to get 1.
Append the next digit (3) from the dividend to 1 and continue with: 13 / 538

Advancing to step 2:
538 goes into 13 0 times with a remainder of 13.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
If we take 0 away from 13, we end up with 13.
Fetch the next digit (5) from the dividend, attach it to 13 and continue: 135 / 538

Step 3:
135 divided by 538 is 0 with a remainder of 135.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
If we subtract 0 from 135, we get 135.
Include the next digit (8) from the dividend after 135, then repeat: 1358 / 538

Let's proceed to step 4:
1358 divided by 538 is 2 with a remainder of 282.
Use 2 as the next digit of our solution. 
Result so far: 2.0
The remainder is 282 after subtracting 1076 from 1358.
Fetch the next digit (0) from the dividend, attach it to 282 and continue: 2820 / 538

Advancing to step 5:
The number 538 fits into 2820 5 times, leaving a remainder of 130.
Use 5 as the next digit of our solution. 
Result so far: 25.0
The remainder is 130 after subtracting 2690 from 2820.
Include the next digit (2) from the dividend after 130, then repeat: 1302 / 538

Moving on to step 6:
1302 divided by 538 is 2 with a remainder of 226.
Record the quotient 2 as the next digit in the result. 
Result so far: 252.0
Subtracting 1076 from 1302 leaves us with 226.
Grab the next digit (6) from the dividend, add it to 226, then carry on: 2266 / 538

Step 7:
538 can be fit into 2266 4 times, resulting in a remainder of 114.
Write down 4 as next digit of the result. 
Result so far: 2524.0
Subtract 2152 from 2266 to get 114.
Include the next digit (5) from the dividend after 114, then repeat: 1145 / 538

Let's proceed to step 8:
538 can be fit into 1145 2 times, resulting in a remainder of 69.
Write down 2 as next digit of the result. 
Result so far: 25242.0
If we subtract 1076 from 1145, we get 69.
Since there are no more digits in the dividend, we add a zero to the remainder making it 690, and continue the process.

Moving on to step 9:
690 divided by 538 is 1 with a remainder of 152.
Use 1 as the next digit of our solution. 
Result so far: 25242.1
The remainder is 152 after subtracting 538 from 690.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1520, and continue the process.

Let's proceed to step 10:
The number 538 fits into 1520 2 times, leaving a remainder of 444.
The next digit of our result is 2. 
Result so far: 25242.12
Subtract 1076 from 1520 to get 444.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4440, and continue the process.

Advancing to step 11:
The number 538 fits into 4440 8 times, leaving a remainder of 136.
Use 8 as the next digit of our solution. 
Result so far: 25242.128
If we take 4304 away from 4440, we end up with 136.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1360, and continue the process.

Moving on to step 12:
538 goes into 1360 2 times with a remainder of 284.
Record the quotient 2 as the next digit in the result. 
Result so far: 25242.1282
The remainder is 284 after subtracting 1076 from 1360.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2840, and continue the process.

Moving on to step 13:
538 can be fit into 2840 5 times, resulting in a remainder of 150.
Record the quotient 5 as the next digit in the result. 
Result so far: 25242.12825
If we subtract 2690 from 2840, we get 150.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1500, and continue the process.

On to step 14:
The number 538 fits into 1500 2 times, leaving a remainder of 424.
The next digit of our result is 2. 
Result so far: 25242.128252
Subtracting 1076 from 1500 leaves us with 424.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4240, and continue the process.

Moving on to step 15:
538 goes into 4240 7 times with a remainder of 474.
The number 7 becomes the next digit in our result. 
Result so far: 25242.1282527
Subtracting 3766 from 4240 leaves us with 474.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4740, and continue the process.

Let's proceed to step 16:
538 goes into 4740 8 times with a remainder of 436.
The next digit of our result is 8. 
Result so far: 25242.12825278
If we subtract 4304 from 4740, we get 436.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4360, and continue the process.

Our division results in 25242.12825278 with a remaining 4.36e-07.