We look at the division of 69808221 by 526 
The aim is to understand the frequency of 526 in 69808221.

Going ahead to step 1:
If we divide 6 by 526, we get 0 and a remainder of 6.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
The remainder is 6 after subtracting 0 from 6.
Bring next digit (9) of the dividend behind the 6 and repeat the process: 69 / 526

Moving on to step 2:
526 goes into 69 0 times with a remainder of 69.
Put 0 as the next digit of the answer. 
Result so far: 0.0
If we subtract 0 from 69, we get 69.
Include the next digit (8) from the dividend after 69, then repeat: 698 / 526

Moving on to step 3:
526 goes into 698 1 times with a remainder of 172.
Write down 1 as next digit of the result. 
Result so far: 1.0
The remainder is 172 after subtracting 526 from 698.
Append the next digit (0) from the dividend to 172 and continue with: 1720 / 526

Advancing to step 4:
When dividing 1720 by 526, we get 3 with a remainder of 142.
The number 3 becomes the next digit in our result. 
Result so far: 13.0
If we take 1578 away from 1720, we end up with 142.
Grab the next digit (8) from the dividend, add it to 142, then carry on: 1428 / 526

Step 5:
526 goes into 1428 2 times with a remainder of 376.
Put 2 as the next digit of the answer. 
Result so far: 132.0
Deduct 1052 from 1428 and we're left with 376.
Append the next digit (2) from the dividend to 376 and continue with: 3762 / 526

Going ahead to step 6:
When dividing 3762 by 526, we get 7 with a remainder of 80.
Record the quotient 7 as the next digit in the result. 
Result so far: 1327.0
If we take 3682 away from 3762, we end up with 80.
Bring next digit (2) of the dividend behind the 80 and repeat the process: 802 / 526

Advancing to step 7:
802 divided by 526 is 1 with a remainder of 276.
Put 1 as the next digit of the answer. 
Result so far: 13271.0
If we take 526 away from 802, we end up with 276.
Include the next digit (1) from the dividend after 276, then repeat: 2761 / 526

Moving on to step 8:
526 goes into 2761 5 times with a remainder of 131.
Write down 5 as next digit of the result. 
Result so far: 132715.0
Subtract 2630 from 2761 to get 131.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1310, and continue the process.

Going ahead to step 9:
If we divide 1310 by 526, we get 2 and a remainder of 258.
Write down 2 as next digit of the result. 
Result so far: 132715.2
If we take 1052 away from 1310, we end up with 258.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2580, and continue the process.

Let's proceed to step 10:
526 goes into 2580 4 times with a remainder of 476.
Write down 4 as next digit of the result. 
Result so far: 132715.24
Deduct 2104 from 2580 and we're left with 476.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4760, and continue the process.

Going ahead to step 11:
526 can be fit into 4760 9 times, resulting in a remainder of 26.
Use 9 as the next digit of our solution. 
Result so far: 132715.249
If we subtract 4734 from 4760, we 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.

Step 12:
When dividing 260 by 526, we get 0 with a remainder of 260.
Put 0 as the next digit of the answer. 
Result so far: 132715.249
If we subtract 0 from 260, we get 260.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2600, and continue the process.

Moving on to step 13:
The number 526 fits into 2600 4 times, leaving a remainder of 496.
The number 4 becomes the next digit in our result. 
Result so far: 132715.24904
If we take 2104 away from 2600, we end up with 496.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4960, and continue the process.

Step 14:
526 goes into 4960 9 times with a remainder of 226.
Put 9 as the next digit of the answer. 
Result so far: 132715.249049
Deduct 4734 from 4960 and we're left with 226.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2260, and continue the process.

Moving on to step 15:
The number 526 fits into 2260 4 times, leaving a remainder of 156.
The number 4 becomes the next digit in our result. 
Result so far: 132715.2490494
The remainder is 156 after subtracting 2104 from 2260.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1560, and continue the process.

Let's proceed to step 16:
526 goes into 1560 2 times with a remainder of 508.
Write down 2 as next digit of the result. 
Result so far: 132715.24904942
Subtracting 1052 from 1560 leaves us with 508.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5080, and continue the process.

Our division results in 132715.24904942 with a remaining 5.08e-07.