87523845 ÷ 969 
The aim is to understand the frequency of 969 in 87523845.

Advancing to step 1:
969 goes into 8 0 times with a remainder of 8.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Subtract 0 from 8 to get 8.
Include the next digit (7) from the dividend after 8, then repeat: 87 / 969

Going ahead to step 2:
The number 969 fits into 87 0 times, leaving a remainder of 87.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
The remainder is 87 after subtracting 0 from 87.
Append the next digit (5) from the dividend to 87 and continue with: 875 / 969

Going ahead to step 3:
875 divided by 969 is 0 with a remainder of 875.
Write down 0 as next digit of the result. 
Result so far: 0.0
The remainder is 875 after subtracting 0 from 875.
Take the next digit (2) from the dividend and append it to 875, then repeat: 8752 / 969

Moving on to step 4:
969 goes into 8752 9 times with a remainder of 31.
Record the quotient 9 as the next digit in the result. 
Result so far: 9.0
Subtract 8721 from 8752 to get 31.
Append the next digit (3) from the dividend to 31 and continue with: 313 / 969

On to step 5:
When dividing 313 by 969, we get 0 with a remainder of 313.
The next digit of our result is 0. 
Result so far: 90.0
If we take 0 away from 313, we end up with 313.
Include the next digit (8) from the dividend after 313, then repeat: 3138 / 969

Advancing to step 6:
3138 divided by 969 is 3 with a remainder of 231.
Write down 3 as next digit of the result. 
Result so far: 903.0
Subtracting 2907 from 3138 leaves us with 231.
Fetch the next digit (4) from the dividend, attach it to 231 and continue: 2314 / 969

Step 7:
When dividing 2314 by 969, we get 2 with a remainder of 376.
The number 2 becomes the next digit in our result. 
Result so far: 9032.0
Subtracting 1938 from 2314 leaves us with 376.
Fetch the next digit (5) from the dividend, attach it to 376 and continue: 3765 / 969

Advancing to step 8:
When dividing 3765 by 969, we get 3 with a remainder of 858.
Put 3 as the next digit of the answer. 
Result so far: 90323.0
If we subtract 2907 from 3765, we get 858.
Since there are no more digits in the dividend, we add a zero to the remainder making it 8580, and continue the process.

Step 9:
8580 divided by 969 is 8 with a remainder of 828.
Record the quotient 8 as the next digit in the result. 
Result so far: 90323.8
If we take 7752 away from 8580, we end up with 828.
Since there are no more digits in the dividend, we add a zero to the remainder making it 8280, and continue the process.

Going ahead to step 10:
969 goes into 8280 8 times with a remainder of 528.
Put 8 as the next digit of the answer. 
Result so far: 90323.88
If we subtract 7752 from 8280, we get 528.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5280, and continue the process.

After the division, we end up with 90323.88 and a remainder of 0.528.