Let's divide 67473 by 66
The aim is to understand the frequency of 66 in 67473.

Step 1:
The number 66 fits into 6 0 times, leaving a remainder of 6.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Subtracting 0 from 6 leaves us with 6.
Bring next digit (7) of the dividend behind the 6 and repeat the process: 67 / 66

Going ahead to step 2:
66 goes into 67 1 times with a remainder of 1.
The next digit of our result is 1. 
Result so far: 1.0
Deduct 66 from 67 and we're left with 1.
Bring next digit (4) of the dividend behind the 1 and repeat the process: 14 / 66

Going ahead to step 3:
The number 66 fits into 14 0 times, leaving a remainder of 14.
Record the quotient 0 as the next digit in the result. 
Result so far: 10.0
The remainder is 14 after subtracting 0 from 14.
Take the next digit (7) from the dividend and append it to 14, then repeat: 147 / 66

Let's proceed to step 4:
When dividing 147 by 66, we get 2 with a remainder of 15.
The number 2 becomes the next digit in our result. 
Result so far: 102.0
If we take 132 away from 147, we end up with 15.
Grab the next digit (3) from the dividend, add it to 15, then carry on: 153 / 66

Step 5:
When dividing 153 by 66, we get 2 with a remainder of 21.
Put 2 as the next digit of the answer. 
Result so far: 1022.0
Subtracting 132 from 153 leaves us with 21.
Since there are no more digits in the dividend, we add a zero to the remainder making it 210, and continue the process.

Going ahead to step 6:
If we divide 210 by 66, we get 3 and a remainder of 12.
Put 3 as the next digit of the answer. 
Result so far: 1022.3
If we subtract 198 from 210, we get 12.
Since there are no more digits in the dividend, we add a zero to the remainder making it 120, and continue the process.

Moving on to step 7:
120 divided by 66 is 1 with a remainder of 54.
The number 1 becomes the next digit in our result. 
Result so far: 1022.31
If we take 66 away from 120, we end up with 54.
Since there are no more digits in the dividend, we add a zero to the remainder making it 540, and continue the process.

Let's proceed to step 8:
66 can be fit into 540 8 times, resulting in a remainder of 12.
The number 8 becomes the next digit in our result. 
Result so far: 1022.318
Deduct 528 from 540 and we're left with 12.
Since there are no more digits in the dividend, we add a zero to the remainder making it 120, and continue the process.

Moving on to step 9:
The number 66 fits into 120 1 times, leaving a remainder of 54.
Write down 1 as next digit of the result. 
Result so far: 1022.3181
The remainder is 54 after subtracting 66 from 120.
Since there are no more digits in the dividend, we add a zero to the remainder making it 540, and continue the process.

Moving on to step 10:
If we divide 540 by 66, we get 8 and a remainder of 12.
Record the quotient 8 as the next digit in the result. 
Result so far: 1022.31818
Subtract 528 from 540 to get 12.
Since there are no more digits in the dividend, we add a zero to the remainder making it 120, and continue the process.

Advancing to step 11:
The number 66 fits into 120 1 times, leaving a remainder of 54.
The number 1 becomes the next digit in our result. 
Result so far: 1022.318181
Deduct 66 from 120 and we're left with 54.
Since there are no more digits in the dividend, we add a zero to the remainder making it 540, and continue the process.

Moving on to step 12:
The number 66 fits into 540 8 times, leaving a remainder of 12.
Record the quotient 8 as the next digit in the result. 
Result so far: 1022.3181818
Deduct 528 from 540 and we're left with 12.
Since there are no more digits in the dividend, we add a zero to the remainder making it 120, and continue the process.

Advancing to step 13:
If we divide 120 by 66, we get 1 and a remainder of 54.
Write down 1 as next digit of the result. 
Result so far: 1022.31818181
The remainder is 54 after subtracting 66 from 120.
Since there are no more digits in the dividend, we add a zero to the remainder making it 540, and continue the process.

The final outcome is 1022.31818181, with a leftover of 5.4e-08.