72165429 ÷ 526 
The aim is to understand the frequency of 526 in 72165429.

Moving on to step 1:
The number 526 fits into 7 0 times, leaving a remainder of 7.
Write down 0 as next digit of the result. 
Result so far: 0.0
The remainder is 7 after subtracting 0 from 7.
Take the next digit (2) from the dividend and append it to 7, then repeat: 72 / 526

On to step 2:
The number 526 fits into 72 0 times, leaving a remainder of 72.
Write down 0 as next digit of the result. 
Result so far: 0.0
Subtracting 0 from 72 leaves us with 72.
Take the next digit (1) from the dividend and append it to 72, then repeat: 721 / 526

Going ahead to step 3:
526 goes into 721 1 times with a remainder of 195.
Write down 1 as next digit of the result. 
Result so far: 1.0
Subtract 526 from 721 to get 195.
Fetch the next digit (6) from the dividend, attach it to 195 and continue: 1956 / 526

On to step 4:
If we divide 1956 by 526, we get 3 and a remainder of 378.
Write down 3 as next digit of the result. 
Result so far: 13.0
Subtract 1578 from 1956 to get 378.
Take the next digit (5) from the dividend and append it to 378, then repeat: 3785 / 526

Let's proceed to step 5:
If we divide 3785 by 526, we get 7 and a remainder of 103.
The next digit of our result is 7. 
Result so far: 137.0
Subtract 3682 from 3785 to get 103.
Append the next digit (4) from the dividend to 103 and continue with: 1034 / 526

Moving on to step 6:
The number 526 fits into 1034 1 times, leaving a remainder of 508.
Use 1 as the next digit of our solution. 
Result so far: 1371.0
If we subtract 526 from 1034, we get 508.
Take the next digit (2) from the dividend and append it to 508, then repeat: 5082 / 526

On to step 7:
When dividing 5082 by 526, we get 9 with a remainder of 348.
The number 9 becomes the next digit in our result. 
Result so far: 13719.0
If we take 4734 away from 5082, we end up with 348.
Take the next digit (9) from the dividend and append it to 348, then repeat: 3489 / 526

Advancing to step 8:
526 goes into 3489 6 times with a remainder of 333.
The next digit of our result is 6. 
Result so far: 137196.0
Deduct 3156 from 3489 and we're left with 333.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3330, and continue the process.

Moving on to step 9:
When dividing 3330 by 526, we get 6 with a remainder of 174.
The number 6 becomes the next digit in our result. 
Result so far: 137196.6
If we take 3156 away from 3330, we end up with 174.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1740, and continue the process.

Moving on to step 10:
If we divide 1740 by 526, we get 3 and a remainder of 162.
Use 3 as the next digit of our solution. 
Result so far: 137196.63
If we take 1578 away from 1740, we end up with 162.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1620, and continue the process.

Moving on to step 11:
When dividing 1620 by 526, we get 3 with a remainder of 42.
The number 3 becomes the next digit in our result. 
Result so far: 137196.633
The remainder is 42 after subtracting 1578 from 1620.
Since there are no more digits in the dividend, we add a zero to the remainder making it 420, and continue the process.

After the division, we end up with 137196.633 and a remainder of 0.0042.