We look at the division of 777253 by 66 
The aim is to understand the frequency of 66 in 777253.

Let's proceed to step 1:
7 divided by 66 is 0 with a remainder of 7.
Write down 0 as next digit of the result. 
Result so far: 0.0
The remainder is 7 after subtracting 0 from 7.
Fetch the next digit (7) from the dividend, attach it to 7 and continue: 77 / 66

Step 2:
77 divided by 66 is 1 with a remainder of 11.
Use 1 as the next digit of our solution. 
Result so far: 1.0
Subtract 66 from 77 to get 11.
Grab the next digit (7) from the dividend, add it to 11, then carry on: 117 / 66

On to step 3:
The number 66 fits into 117 1 times, leaving a remainder of 51.
Use 1 as the next digit of our solution. 
Result so far: 11.0
If we take 66 away from 117, we end up with 51.
Bring next digit (2) of the dividend behind the 51 and repeat the process: 512 / 66

Let's proceed to step 4:
When dividing 512 by 66, we get 7 with a remainder of 50.
Put 7 as the next digit of the answer. 
Result so far: 117.0
Subtracting 462 from 512 leaves us with 50.
Fetch the next digit (5) from the dividend, attach it to 50 and continue: 505 / 66

Moving on to step 5:
66 can be fit into 505 7 times, resulting in a remainder of 43.
Put 7 as the next digit of the answer. 
Result so far: 1177.0
Subtracting 462 from 505 leaves us with 43.
Bring next digit (3) of the dividend behind the 43 and repeat the process: 433 / 66

On to step 6:
66 can be fit into 433 6 times, resulting in a remainder of 37.
Put 6 as the next digit of the answer. 
Result so far: 11776.0
If we subtract 396 from 433, we get 37.
Since there are no more digits in the dividend, we add a zero to the remainder making it 370, and continue the process.

Going ahead to step 7:
When dividing 370 by 66, we get 5 with a remainder of 40.
Use 5 as the next digit of our solution. 
Result so far: 11776.5
Subtract 330 from 370 to get 40.
Since there are no more digits in the dividend, we add a zero to the remainder making it 400, and continue the process.

Advancing to step 8:
66 can be fit into 400 6 times, resulting in a remainder of 4.
Write down 6 as next digit of the result. 
Result so far: 11776.56
Deduct 396 from 400 and we're left with 4.
Since there are no more digits in the dividend, we add a zero to the remainder making it 40, and continue the process.

Moving on to step 9:
66 can be fit into 40 0 times, resulting in a remainder of 40.
Use 0 as the next digit of our solution. 
Result so far: 11776.56
If we subtract 0 from 40, we get 40.
Since there are no more digits in the dividend, we add a zero to the remainder making it 400, and continue the process.

Moving on to step 10:
When dividing 400 by 66, we get 6 with a remainder of 4.
Use 6 as the next digit of our solution. 
Result so far: 11776.5606
If we take 396 away from 400, we end up with 4.
Since there are no more digits in the dividend, we add a zero to the remainder making it 40, and continue the process.

Advancing to step 11:
40 divided by 66 is 0 with a remainder of 40.
The next digit of our result is 0. 
Result so far: 11776.5606
The remainder is 40 after subtracting 0 from 40.
Since there are no more digits in the dividend, we add a zero to the remainder making it 400, and continue the process.

Advancing to step 12:
66 can be fit into 400 6 times, resulting in a remainder of 4.
Use 6 as the next digit of our solution. 
Result so far: 11776.560606
If we subtract 396 from 400, we get 4.
Since there are no more digits in the dividend, we add a zero to the remainder making it 40, and continue the process.

Step 13:
66 can be fit into 40 0 times, resulting in a remainder of 40.
Write down 0 as next digit of the result. 
Result so far: 11776.560606
The remainder is 40 after subtracting 0 from 40.
Since there are no more digits in the dividend, we add a zero to the remainder making it 400, and continue the process.

Advancing to step 14:
When dividing 400 by 66, we get 6 with a remainder of 4.
Record the quotient 6 as the next digit in the result. 
Result so far: 11776.56060606
Subtracting 396 from 400 leaves us with 4.
Since there are no more digits in the dividend, we add a zero to the remainder making it 40, and continue the process.

In conclusion, the division gives 11776.56060606 with a balance of 4e-09.