We're dividing 7147511 by 526 
The aim is to understand the frequency of 526 in 7147511.

Advancing to step 1:
If we divide 7 by 526, we get 0 and a remainder of 7.
Write down 0 as next digit of the result. 
Result so far: 0.0
Subtract 0 from 7 to get 7.
Fetch the next digit (1) from the dividend, attach it to 7 and continue: 71 / 526

Advancing to step 2:
When dividing 71 by 526, we get 0 with a remainder of 71.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
If we subtract 0 from 71, we get 71.
Fetch the next digit (4) from the dividend, attach it to 71 and continue: 714 / 526

Advancing to step 3:
526 goes into 714 1 times with a remainder of 188.
Write down 1 as next digit of the result. 
Result so far: 1.0
If we take 526 away from 714, we end up with 188.
Take the next digit (7) from the dividend and append it to 188, then repeat: 1887 / 526

Going ahead to step 4:
The number 526 fits into 1887 3 times, leaving a remainder of 309.
The next digit of our result is 3. 
Result so far: 13.0
Deduct 1578 from 1887 and we're left with 309.
Include the next digit (5) from the dividend after 309, then repeat: 3095 / 526

On to step 5:
The number 526 fits into 3095 5 times, leaving a remainder of 465.
Record the quotient 5 as the next digit in the result. 
Result so far: 135.0
If we subtract 2630 from 3095, we get 465.
Append the next digit (1) from the dividend to 465 and continue with: 4651 / 526

On to step 6:
If we divide 4651 by 526, we get 8 and a remainder of 443.
Record the quotient 8 as the next digit in the result. 
Result so far: 1358.0
If we subtract 4208 from 4651, we get 443.
Include the next digit (1) from the dividend after 443, then repeat: 4431 / 526

Step 7:
If we divide 4431 by 526, we get 8 and a remainder of 223.
Record the quotient 8 as the next digit in the result. 
Result so far: 13588.0
Subtract 4208 from 4431 to get 223.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2230, and continue the process.

Let's proceed to step 8:
When dividing 2230 by 526, we get 4 with a remainder of 126.
Write down 4 as next digit of the result. 
Result so far: 13588.4
If we take 2104 away from 2230, we end up with 126.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1260, and continue the process.

Going ahead to step 9:
1260 divided by 526 is 2 with a remainder of 208.
Write down 2 as next digit of the result. 
Result so far: 13588.42
If we subtract 1052 from 1260, we get 208.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2080, and continue the process.

Advancing to step 10:
The number 526 fits into 2080 3 times, leaving a remainder of 502.
Put 3 as the next digit of the answer. 
Result so far: 13588.423
If we subtract 1578 from 2080, we get 502.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5020, and continue the process.

Advancing to step 11:
If we divide 5020 by 526, we get 9 and a remainder of 286.
Use 9 as the next digit of our solution. 
Result so far: 13588.4239
If we take 4734 away from 5020, we end up with 286.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2860, and continue the process.

Step 12:
526 goes into 2860 5 times with a remainder of 230.
Use 5 as the next digit of our solution. 
Result so far: 13588.42395
Deduct 2630 from 2860 and we're left with 230.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2300, and continue the process.

Moving on to step 13:
2300 divided by 526 is 4 with a remainder of 196.
The next digit of our result is 4. 
Result so far: 13588.423954
Subtracting 2104 from 2300 leaves us with 196.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1960, and continue the process.

Advancing to step 14:
When dividing 1960 by 526, we get 3 with a remainder of 382.
The next digit of our result is 3. 
Result so far: 13588.4239543
The remainder is 382 after subtracting 1578 from 1960.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3820, and continue the process.

Let's proceed to step 15:
If we divide 3820 by 526, we get 7 and a remainder of 138.
Record the quotient 7 as the next digit in the result. 
Result so far: 13588.42395437
Subtracting 3682 from 3820 leaves us with 138.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1380, and continue the process.

After the division, we end up with 13588.42395437 and a remainder of 1.38e-07.