164861 divided by 66 
The aim is to understand the frequency of 66 in 164861.

Going ahead to step 1:
1 divided by 66 is 0 with a remainder of 1.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Subtracting 0 from 1 leaves us with 1.
Append the next digit (6) from the dividend to 1 and continue with: 16 / 66

Moving on to step 2:
The number 66 fits into 16 0 times, leaving a remainder of 16.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Subtract 0 from 16 to get 16.
Grab the next digit (4) from the dividend, add it to 16, then carry on: 164 / 66

Going ahead to step 3:
66 goes into 164 2 times with a remainder of 32.
Use 2 as the next digit of our solution. 
Result so far: 2.0
If we subtract 132 from 164, we get 32.
Bring next digit (8) of the dividend behind the 32 and repeat the process: 328 / 66

Step 4:
66 goes into 328 4 times with a remainder of 64.
Put 4 as the next digit of the answer. 
Result so far: 24.0
Deduct 264 from 328 and we're left with 64.
Append the next digit (6) from the dividend to 64 and continue with: 646 / 66

Moving on to step 5:
646 divided by 66 is 9 with a remainder of 52.
Put 9 as the next digit of the answer. 
Result so far: 249.0
The remainder is 52 after subtracting 594 from 646.
Take the next digit (1) from the dividend and append it to 52, then repeat: 521 / 66

Going ahead to step 6:
521 divided by 66 is 7 with a remainder of 59.
Record the quotient 7 as the next digit in the result. 
Result so far: 2497.0
The remainder is 59 after subtracting 462 from 521.
Since there are no more digits in the dividend, we add a zero to the remainder making it 590, and continue the process.

Let's proceed to step 7:
If we divide 590 by 66, we get 8 and a remainder of 62.
Record the quotient 8 as the next digit in the result. 
Result so far: 2497.8
Subtract 528 from 590 to get 62.
Since there are no more digits in the dividend, we add a zero to the remainder making it 620, and continue the process.

On to step 8:
When dividing 620 by 66, we get 9 with a remainder of 26.
The next digit of our result is 9. 
Result so far: 2497.89
Deduct 594 from 620 and we're left with 26.
Since there are no more digits in the dividend, we add a zero to the remainder making it 260, and continue the process.

Going ahead to step 9:
When dividing 260 by 66, we get 3 with a remainder of 62.
Record the quotient 3 as the next digit in the result. 
Result so far: 2497.893
If we subtract 198 from 260, we get 62.
Since there are no more digits in the dividend, we add a zero to the remainder making it 620, and continue the process.

Moving on to step 10:
66 goes into 620 9 times with a remainder of 26.
Record the quotient 9 as the next digit in the result. 
Result so far: 2497.8939
Deduct 594 from 620 and we're left with 26.
Since there are no more digits in the dividend, we add a zero to the remainder making it 260, and continue the process.

Moving on to step 11:
The number 66 fits into 260 3 times, leaving a remainder of 62.
Write down 3 as next digit of the result. 
Result so far: 2497.89393
Subtracting 198 from 260 leaves us with 62.
Since there are no more digits in the dividend, we add a zero to the remainder making it 620, and continue the process.

Step 12:
The number 66 fits into 620 9 times, leaving a remainder of 26.
The next digit of our result is 9. 
Result so far: 2497.893939
If we take 594 away from 620, we end up with 26.
Since there are no more digits in the dividend, we add a zero to the remainder making it 260, and continue the process.

Let's proceed to step 13:
The number 66 fits into 260 3 times, leaving a remainder of 62.
Put 3 as the next digit of the answer. 
Result so far: 2497.8939393
Subtract 198 from 260 to get 62.
Since there are no more digits in the dividend, we add a zero to the remainder making it 620, and continue the process.

Moving on to step 14:
If we divide 620 by 66, we get 9 and a remainder of 26.
Record the quotient 9 as the next digit in the result. 
Result so far: 2497.89393939
Subtract 594 from 620 to get 26.
Since there are no more digits in the dividend, we add a zero to the remainder making it 260, and continue the process.

In conclusion, the division gives 2497.89393939 with a balance of 2.6e-08.