83015573 ÷ 966 
The aim is to understand the frequency of 966 in 83015573.

Advancing to step 1:
966 can be fit into 8 0 times, resulting in a remainder of 8.
The next digit of our result is 0. 
Result so far: 0.0
Subtracting 0 from 8 leaves us with 8.
Fetch the next digit (3) from the dividend, attach it to 8 and continue: 83 / 966

Moving on to step 2:
If we divide 83 by 966, we get 0 and a remainder of 83.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Deduct 0 from 83 and we're left with 83.
Bring next digit (0) of the dividend behind the 83 and repeat the process: 830 / 966

Step 3:
When dividing 830 by 966, we get 0 with a remainder of 830.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
If we subtract 0 from 830, we get 830.
Append the next digit (1) from the dividend to 830 and continue with: 8301 / 966

Let's proceed to step 4:
966 goes into 8301 8 times with a remainder of 573.
Write down 8 as next digit of the result. 
Result so far: 8.0
Subtracting 7728 from 8301 leaves us with 573.
Grab the next digit (5) from the dividend, add it to 573, then carry on: 5735 / 966

Step 5:
5735 divided by 966 is 5 with a remainder of 905.
Record the quotient 5 as the next digit in the result. 
Result so far: 85.0
If we subtract 4830 from 5735, we get 905.
Bring next digit (5) of the dividend behind the 905 and repeat the process: 9055 / 966

Let's proceed to step 6:
9055 divided by 966 is 9 with a remainder of 361.
Write down 9 as next digit of the result. 
Result so far: 859.0
If we take 8694 away from 9055, we end up with 361.
Take the next digit (7) from the dividend and append it to 361, then repeat: 3617 / 966

On to step 7:
966 can be fit into 3617 3 times, resulting in a remainder of 719.
The number 3 becomes the next digit in our result. 
Result so far: 8593.0
Subtracting 2898 from 3617 leaves us with 719.
Bring next digit (3) of the dividend behind the 719 and repeat the process: 7193 / 966

Going ahead to step 8:
7193 divided by 966 is 7 with a remainder of 431.
Put 7 as the next digit of the answer. 
Result so far: 85937.0
If we subtract 6762 from 7193, we get 431.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4310, and continue the process.

Moving on to step 9:
4310 divided by 966 is 4 with a remainder of 446.
Put 4 as the next digit of the answer. 
Result so far: 85937.4
Deduct 3864 from 4310 and we're left with 446.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4460, and continue the process.

Let's proceed to step 10:
966 goes into 4460 4 times with a remainder of 596.
Record the quotient 4 as the next digit in the result. 
Result so far: 85937.44
Subtracting 3864 from 4460 leaves us with 596.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5960, and continue the process.

Our division results in 85937.44 with a remaining 0.596.