We divide 130872 by 66
The aim is to understand the frequency of 66 in 130872.

Advancing to step 1:
If we divide 1 by 66, we get 0 and a remainder of 1.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Deduct 0 from 1 and we're left with 1.
Bring next digit (3) of the dividend behind the 1 and repeat the process: 13 / 66

Advancing to step 2:
When dividing 13 by 66, we get 0 with a remainder of 13.
The next digit of our result is 0. 
Result so far: 0.0
If we take 0 away from 13, we end up with 13.
Fetch the next digit (0) from the dividend, attach it to 13 and continue: 130 / 66

On to step 3:
If we divide 130 by 66, we get 1 and a remainder of 64.
The next digit of our result is 1. 
Result so far: 1.0
The remainder is 64 after subtracting 66 from 130.
Fetch the next digit (8) from the dividend, attach it to 64 and continue: 648 / 66

Moving on to step 4:
If we divide 648 by 66, we get 9 and a remainder of 54.
Use 9 as the next digit of our solution. 
Result so far: 19.0
Subtract 594 from 648 to get 54.
Take the next digit (7) from the dividend and append it to 54, then repeat: 547 / 66

Moving on to step 5:
The number 66 fits into 547 8 times, leaving a remainder of 19.
Record the quotient 8 as the next digit in the result. 
Result so far: 198.0
The remainder is 19 after subtracting 528 from 547.
Grab the next digit (2) from the dividend, add it to 19, then carry on: 192 / 66

On to step 6:
192 divided by 66 is 2 with a remainder of 60.
Put 2 as the next digit of the answer. 
Result so far: 1982.0
Subtract 132 from 192 to get 60.
Since there are no more digits in the dividend, we add a zero to the remainder making it 600, and continue the process.

Step 7:
If we divide 600 by 66, we get 9 and a remainder of 6.
The next digit of our result is 9. 
Result so far: 1982.9
If we subtract 594 from 600, we get 6.
Since there are no more digits in the dividend, we add a zero to the remainder making it 60, and continue the process.

Moving on to step 8:
If we divide 60 by 66, we get 0 and a remainder of 60.
The next digit of our result is 0. 
Result so far: 1982.9
If we subtract 0 from 60, we get 60.
Since there are no more digits in the dividend, we add a zero to the remainder making it 600, and continue the process.

On to step 9:
When dividing 600 by 66, we get 9 with a remainder of 6.
Put 9 as the next digit of the answer. 
Result so far: 1982.909
If we take 594 away from 600, we end up with 6.
Since there are no more digits in the dividend, we add a zero to the remainder making it 60, and continue the process.

Step 10:
66 goes into 60 0 times with a remainder of 60.
Put 0 as the next digit of the answer. 
Result so far: 1982.909
Deduct 0 from 60 and we're left with 60.
Since there are no more digits in the dividend, we add a zero to the remainder making it 600, and continue the process.

Going ahead to step 11:
66 can be fit into 600 9 times, resulting in a remainder of 6.
Write down 9 as next digit of the result. 
Result so far: 1982.90909
The remainder is 6 after subtracting 594 from 600.
Since there are no more digits in the dividend, we add a zero to the remainder making it 60, and continue the process.

Advancing to step 12:
The number 66 fits into 60 0 times, leaving a remainder of 60.
The next digit of our result is 0. 
Result so far: 1982.90909
Subtracting 0 from 60 leaves us with 60.
Since there are no more digits in the dividend, we add a zero to the remainder making it 600, and continue the process.

Advancing to step 13:
If we divide 600 by 66, we get 9 and a remainder of 6.
The next digit of our result is 9. 
Result so far: 1982.9090909
Subtract 594 from 600 to get 6.
Since there are no more digits in the dividend, we add a zero to the remainder making it 60, and continue the process.

On to step 14:
66 goes into 60 0 times with a remainder of 60.
Record the quotient 0 as the next digit in the result. 
Result so far: 1982.9090909
Deduct 0 from 60 and we're left with 60.
Since there are no more digits in the dividend, we add a zero to the remainder making it 600, and continue the process.

The final result is 1982.9090909 with a remainder of 6e-08.