We look at the division of 88432689 by 523 
The aim is to understand the frequency of 523 in 88432689.

Moving on to step 1:
If we divide 8 by 523, we get 0 and a remainder of 8.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Subtracting 0 from 8 leaves us with 8.
Include the next digit (8) from the dividend after 8, then repeat: 88 / 523

Let's proceed to step 2:
88 divided by 523 is 0 with a remainder of 88.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Subtracting 0 from 88 leaves us with 88.
Take the next digit (4) from the dividend and append it to 88, then repeat: 884 / 523

Advancing to step 3:
If we divide 884 by 523, we get 1 and a remainder of 361.
Put 1 as the next digit of the answer. 
Result so far: 1.0
If we take 523 away from 884, we end up with 361.
Bring next digit (3) of the dividend behind the 361 and repeat the process: 3613 / 523

Going ahead to step 4:
523 goes into 3613 6 times with a remainder of 475.
Record the quotient 6 as the next digit in the result. 
Result so far: 16.0
The remainder is 475 after subtracting 3138 from 3613.
Grab the next digit (2) from the dividend, add it to 475, then carry on: 4752 / 523

Let's proceed to step 5:
523 goes into 4752 9 times with a remainder of 45.
Record the quotient 9 as the next digit in the result. 
Result so far: 169.0
Subtract 4707 from 4752 to get 45.
Take the next digit (6) from the dividend and append it to 45, then repeat: 456 / 523

Going ahead to step 6:
523 goes into 456 0 times with a remainder of 456.
Record the quotient 0 as the next digit in the result. 
Result so far: 1690.0
If we take 0 away from 456, we end up with 456.
Grab the next digit (8) from the dividend, add it to 456, then carry on: 4568 / 523

Let's proceed to step 7:
The number 523 fits into 4568 8 times, leaving a remainder of 384.
Use 8 as the next digit of our solution. 
Result so far: 16908.0
Subtracting 4184 from 4568 leaves us with 384.
Fetch the next digit (9) from the dividend, attach it to 384 and continue: 3849 / 523

On to step 8:
523 can be fit into 3849 7 times, resulting in a remainder of 188.
The number 7 becomes the next digit in our result. 
Result so far: 169087.0
If we subtract 3661 from 3849, we get 188.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1880, and continue the process.

Let's proceed to step 9:
523 goes into 1880 3 times with a remainder of 311.
The number 3 becomes the next digit in our result. 
Result so far: 169087.3
Subtracting 1569 from 1880 leaves us with 311.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3110, and continue the process.

Moving on to step 10:
523 goes into 3110 5 times with a remainder of 495.
Put 5 as the next digit of the answer. 
Result so far: 169087.35
If we take 2615 away from 3110, we end up with 495.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4950, and continue the process.

Going ahead to step 11:
4950 divided by 523 is 9 with a remainder of 243.
Record the quotient 9 as the next digit in the result. 
Result so far: 169087.359
Deduct 4707 from 4950 and we're left with 243.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2430, and continue the process.

Step 12:
523 goes into 2430 4 times with a remainder of 338.
Put 4 as the next digit of the answer. 
Result so far: 169087.3594
Subtract 2092 from 2430 to get 338.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3380, and continue the process.

Advancing to step 13:
523 can be fit into 3380 6 times, resulting in a remainder of 242.
The next digit of our result is 6. 
Result so far: 169087.35946
Deduct 3138 from 3380 and we're left with 242.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2420, and continue the process.

Going ahead to step 14:
523 goes into 2420 4 times with a remainder of 328.
Put 4 as the next digit of the answer. 
Result so far: 169087.359464
Subtracting 2092 from 2420 leaves us with 328.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3280, and continue the process.

On to step 15:
When dividing 3280 by 523, we get 6 with a remainder of 142.
Record the quotient 6 as the next digit in the result. 
Result so far: 169087.3594646
If we subtract 3138 from 3280, we get 142.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1420, and continue the process.

Advancing to step 16:
523 can be fit into 1420 2 times, resulting in a remainder of 374.
Write down 2 as next digit of the result. 
Result so far: 169087.35946462
Deduct 1046 from 1420 and we're left with 374.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3740, and continue the process.

After the division, we end up with 169087.35946462 and a remainder of 3.74e-07.