We look at the division of 69963583 by 524 
The aim is to understand the frequency of 524 in 69963583.

Going ahead to step 1:
If we divide 6 by 524, we get 0 and a remainder of 6.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Deduct 0 from 6 and we're left with 6.
Bring next digit (9) of the dividend behind the 6 and repeat the process: 69 / 524

Going ahead to step 2:
When dividing 69 by 524, we get 0 with a remainder of 69.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Subtracting 0 from 69 leaves us with 69.
Grab the next digit (9) from the dividend, add it to 69, then carry on: 699 / 524

On to step 3:
699 divided by 524 is 1 with a remainder of 175.
Record the quotient 1 as the next digit in the result. 
Result so far: 1.0
Deduct 524 from 699 and we're left with 175.
Include the next digit (6) from the dividend after 175, then repeat: 1756 / 524

On to step 4:
When dividing 1756 by 524, we get 3 with a remainder of 184.
Record the quotient 3 as the next digit in the result. 
Result so far: 13.0
Deduct 1572 from 1756 and we're left with 184.
Bring next digit (3) of the dividend behind the 184 and repeat the process: 1843 / 524

Let's proceed to step 5:
The number 524 fits into 1843 3 times, leaving a remainder of 271.
The next digit of our result is 3. 
Result so far: 133.0
Subtract 1572 from 1843 to get 271.
Take the next digit (5) from the dividend and append it to 271, then repeat: 2715 / 524

Step 6:
524 goes into 2715 5 times with a remainder of 95.
The next digit of our result is 5. 
Result so far: 1335.0
If we take 2620 away from 2715, we end up with 95.
Take the next digit (8) from the dividend and append it to 95, then repeat: 958 / 524

Let's proceed to step 7:
524 can be fit into 958 1 times, resulting in a remainder of 434.
The next digit of our result is 1. 
Result so far: 13351.0
If we subtract 524 from 958, we get 434.
Take the next digit (3) from the dividend and append it to 434, then repeat: 4343 / 524

Step 8:
If we divide 4343 by 524, we get 8 and a remainder of 151.
The number 8 becomes the next digit in our result. 
Result so far: 133518.0
The remainder is 151 after subtracting 4192 from 4343.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1510, and continue the process.

Advancing to step 9:
If we divide 1510 by 524, we get 2 and a remainder of 462.
Write down 2 as next digit of the result. 
Result so far: 133518.2
If we take 1048 away from 1510, we end up with 462.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4620, and continue the process.

Advancing to step 10:
524 goes into 4620 8 times with a remainder of 428.
The next digit of our result is 8. 
Result so far: 133518.28
If we take 4192 away from 4620, we end up with 428.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4280, and continue the process.

On to step 11:
4280 divided by 524 is 8 with a remainder of 88.
Put 8 as the next digit of the answer. 
Result so far: 133518.288
If we take 4192 away from 4280, we end up with 88.
Since there are no more digits in the dividend, we add a zero to the remainder making it 880, and continue the process.

The quotient of the division is 133518.288, and the remainder is 0.0088.