87920749 ÷ 966 
The aim is to understand the frequency of 966 in 87920749.

Going ahead to step 1:
If we divide 8 by 966, we get 0 and a remainder of 8.
Use 0 as the next digit of our solution. 
Result so far: 0.0
The remainder is 8 after subtracting 0 from 8.
Bring next digit (7) of the dividend behind the 8 and repeat the process: 87 / 966

Moving on to step 2:
966 can be fit into 87 0 times, resulting in a remainder of 87.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Subtract 0 from 87 to get 87.
Fetch the next digit (9) from the dividend, attach it to 87 and continue: 879 / 966

Moving on to step 3:
When dividing 879 by 966, we get 0 with a remainder of 879.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Subtracting 0 from 879 leaves us with 879.
Grab the next digit (2) from the dividend, add it to 879, then carry on: 8792 / 966

Advancing to step 4:
966 goes into 8792 9 times with a remainder of 98.
Write down 9 as next digit of the result. 
Result so far: 9.0
If we subtract 8694 from 8792, we get 98.
Grab the next digit (0) from the dividend, add it to 98, then carry on: 980 / 966

On to step 5:
966 can be fit into 980 1 times, resulting in a remainder of 14.
Record the quotient 1 as the next digit in the result. 
Result so far: 91.0
Subtracting 966 from 980 leaves us with 14.
Bring next digit (7) of the dividend behind the 14 and repeat the process: 147 / 966

Moving on to step 6:
966 can be fit into 147 0 times, resulting in a remainder of 147.
The number 0 becomes the next digit in our result. 
Result so far: 910.0
If we take 0 away from 147, we end up with 147.
Grab the next digit (4) from the dividend, add it to 147, then carry on: 1474 / 966

Let's proceed to step 7:
1474 divided by 966 is 1 with a remainder of 508.
Use 1 as the next digit of our solution. 
Result so far: 9101.0
If we take 966 away from 1474, we end up with 508.
Bring next digit (9) of the dividend behind the 508 and repeat the process: 5089 / 966

Step 8:
966 can be fit into 5089 5 times, resulting in a remainder of 259.
Use 5 as the next digit of our solution. 
Result so far: 91015.0
Subtract 4830 from 5089 to get 259.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2590, and continue the process.

Going ahead to step 9:
2590 divided by 966 is 2 with a remainder of 658.
Record the quotient 2 as the next digit in the result. 
Result so far: 91015.2
If we take 1932 away from 2590, we end up with 658.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6580, and continue the process.

On to step 10:
6580 divided by 966 is 6 with a remainder of 784.
The number 6 becomes the next digit in our result. 
Result so far: 91015.26
Subtract 5796 from 6580 to get 784.
Since there are no more digits in the dividend, we add a zero to the remainder making it 7840, and continue the process.

Going ahead to step 11:
966 goes into 7840 8 times with a remainder of 112.
Put 8 as the next digit of the answer. 
Result so far: 91015.268
Subtract 7728 from 7840 to get 112.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1120, and continue the process.

Advancing to step 12:
If we divide 1120 by 966, we get 1 and a remainder of 154.
Use 1 as the next digit of our solution. 
Result so far: 91015.2681
If we take 966 away from 1120, we end up with 154.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1540, and continue the process.

On to step 13:
1540 divided by 966 is 1 with a remainder of 574.
Record the quotient 1 as the next digit in the result. 
Result so far: 91015.26811
Deduct 966 from 1540 and we're left with 574.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5740, and continue the process.

The final outcome is 91015.26811, with a leftover of 0.000574.