783471 divided by 66 
The aim is to understand the frequency of 66 in 783471.

Let's proceed to step 1:
The number 66 fits into 7 0 times, leaving a remainder of 7.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Subtracting 0 from 7 leaves us with 7.
Fetch the next digit (8) from the dividend, attach it to 7 and continue: 78 / 66

Let's proceed to step 2:
When dividing 78 by 66, we get 1 with a remainder of 12.
The number 1 becomes the next digit in our result. 
Result so far: 1.0
If we subtract 66 from 78, we get 12.
Bring next digit (3) of the dividend behind the 12 and repeat the process: 123 / 66

On to step 3:
When dividing 123 by 66, we get 1 with a remainder of 57.
Record the quotient 1 as the next digit in the result. 
Result so far: 11.0
If we subtract 66 from 123, we get 57.
Fetch the next digit (4) from the dividend, attach it to 57 and continue: 574 / 66

Advancing to step 4:
The number 66 fits into 574 8 times, leaving a remainder of 46.
Record the quotient 8 as the next digit in the result. 
Result so far: 118.0
Deduct 528 from 574 and we're left with 46.
Include the next digit (7) from the dividend after 46, then repeat: 467 / 66

Advancing to step 5:
If we divide 467 by 66, we get 7 and a remainder of 5.
Use 7 as the next digit of our solution. 
Result so far: 1187.0
If we take 462 away from 467, we end up with 5.
Append the next digit (1) from the dividend to 5 and continue with: 51 / 66

Moving on to step 6:
When dividing 51 by 66, we get 0 with a remainder of 51.
The next digit of our result is 0. 
Result so far: 11870.0
If we subtract 0 from 51, we get 51.
Since there are no more digits in the dividend, we add a zero to the remainder making it 510, and continue the process.

Advancing to step 7:
510 divided by 66 is 7 with a remainder of 48.
The number 7 becomes the next digit in our result. 
Result so far: 11870.7
Deduct 462 from 510 and we're left with 48.
Since there are no more digits in the dividend, we add a zero to the remainder making it 480, and continue the process.

Going ahead to step 8:
If we divide 480 by 66, we get 7 and a remainder of 18.
The next digit of our result is 7. 
Result so far: 11870.77
If we subtract 462 from 480, we get 18.
Since there are no more digits in the dividend, we add a zero to the remainder making it 180, and continue the process.

In conclusion, the division gives 11870.77 with a balance of 0.018.