90261453 divided by 526 
The aim is to understand the frequency of 526 in 90261453.

Step 1:
If we divide 9 by 526, we get 0 and a remainder of 9.
Write down 0 as next digit of the result. 
Result so far: 0.0
If we take 0 away from 9, we end up with 9.
Grab the next digit (0) from the dividend, add it to 9, then carry on: 90 / 526

Going ahead to step 2:
526 can be fit into 90 0 times, resulting in a remainder of 90.
Put 0 as the next digit of the answer. 
Result so far: 0.0
If we take 0 away from 90, we end up with 90.
Grab the next digit (2) from the dividend, add it to 90, then carry on: 902 / 526

On to step 3:
If we divide 902 by 526, we get 1 and a remainder of 376.
Write down 1 as next digit of the result. 
Result so far: 1.0
The remainder is 376 after subtracting 526 from 902.
Fetch the next digit (6) from the dividend, attach it to 376 and continue: 3766 / 526

On to step 4:
526 goes into 3766 7 times with a remainder of 84.
Record the quotient 7 as the next digit in the result. 
Result so far: 17.0
If we take 3682 away from 3766, we end up with 84.
Take the next digit (1) from the dividend and append it to 84, then repeat: 841 / 526

On to step 5:
When dividing 841 by 526, we get 1 with a remainder of 315.
The number 1 becomes the next digit in our result. 
Result so far: 171.0
If we take 526 away from 841, we end up with 315.
Append the next digit (4) from the dividend to 315 and continue with: 3154 / 526

Step 6:
The number 526 fits into 3154 5 times, leaving a remainder of 524.
Put 5 as the next digit of the answer. 
Result so far: 1715.0
If we take 2630 away from 3154, we end up with 524.
Include the next digit (5) from the dividend after 524, then repeat: 5245 / 526

Going ahead to step 7:
526 can be fit into 5245 9 times, resulting in a remainder of 511.
The next digit of our result is 9. 
Result so far: 17159.0
The remainder is 511 after subtracting 4734 from 5245.
Bring next digit (3) of the dividend behind the 511 and repeat the process: 5113 / 526

Going ahead to step 8:
526 goes into 5113 9 times with a remainder of 379.
The number 9 becomes the next digit in our result. 
Result so far: 171599.0
If we take 4734 away from 5113, we end up with 379.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3790, and continue the process.

Going ahead to step 9:
3790 divided by 526 is 7 with a remainder of 108.
The next digit of our result is 7. 
Result so far: 171599.7
Subtracting 3682 from 3790 leaves us with 108.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1080, and continue the process.

Advancing to step 10:
1080 divided by 526 is 2 with a remainder of 28.
The number 2 becomes the next digit in our result. 
Result so far: 171599.72
If we subtract 1052 from 1080, we get 28.
Since there are no more digits in the dividend, we add a zero to the remainder making it 280, and continue the process.

Moving on to step 11:
If we divide 280 by 526, we get 0 and a remainder of 280.
Use 0 as the next digit of our solution. 
Result so far: 171599.72
The remainder is 280 after subtracting 0 from 280.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2800, and continue the process.

On to step 12:
If we divide 2800 by 526, we get 5 and a remainder of 170.
Put 5 as the next digit of the answer. 
Result so far: 171599.7205
Subtracting 2630 from 2800 leaves us with 170.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1700, and continue the process.

Going ahead to step 13:
The number 526 fits into 1700 3 times, leaving a remainder of 122.
Write down 3 as next digit of the result. 
Result so far: 171599.72053
The remainder is 122 after subtracting 1578 from 1700.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1220, and continue the process.

Step 14:
The number 526 fits into 1220 2 times, leaving a remainder of 168.
Use 2 as the next digit of our solution. 
Result so far: 171599.720532
Deduct 1052 from 1220 and we're left with 168.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1680, and continue the process.

Going ahead to step 15:
526 goes into 1680 3 times with a remainder of 102.
The next digit of our result is 3. 
Result so far: 171599.7205323
Deduct 1578 from 1680 and we're left with 102.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1020, and continue the process.

On to step 16:
526 goes into 1020 1 times with a remainder of 494.
Record the quotient 1 as the next digit in the result. 
Result so far: 171599.72053231
Deduct 526 from 1020 and we're left with 494.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4940, and continue the process.

The final outcome is 171599.72053231, with a leftover of 4.94e-07.