Let's divide 52251489 by 66
The aim is to understand the frequency of 66 in 52251489.

Let's proceed to step 1:
When dividing 5 by 66, we get 0 with a remainder of 5.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Subtract 0 from 5 to get 5.
Fetch the next digit (2) from the dividend, attach it to 5 and continue: 52 / 66

Advancing to step 2:
The number 66 fits into 52 0 times, leaving a remainder of 52.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Subtracting 0 from 52 leaves us with 52.
Grab the next digit (2) from the dividend, add it to 52, then carry on: 522 / 66

On to step 3:
522 divided by 66 is 7 with a remainder of 60.
The number 7 becomes the next digit in our result. 
Result so far: 7.0
Deduct 462 from 522 and we're left with 60.
Include the next digit (5) from the dividend after 60, then repeat: 605 / 66

Step 4:
605 divided by 66 is 9 with a remainder of 11.
The number 9 becomes the next digit in our result. 
Result so far: 79.0
Subtract 594 from 605 to get 11.
Take the next digit (1) from the dividend and append it to 11, then repeat: 111 / 66

Step 5:
If we divide 111 by 66, we get 1 and a remainder of 45.
The number 1 becomes the next digit in our result. 
Result so far: 791.0
Deduct 66 from 111 and we're left with 45.
Include the next digit (4) from the dividend after 45, then repeat: 454 / 66

Let's proceed to step 6:
66 goes into 454 6 times with a remainder of 58.
The number 6 becomes the next digit in our result. 
Result so far: 7916.0
Deduct 396 from 454 and we're left with 58.
Bring next digit (8) of the dividend behind the 58 and repeat the process: 588 / 66

On to step 7:
66 goes into 588 8 times with a remainder of 60.
The number 8 becomes the next digit in our result. 
Result so far: 79168.0
If we subtract 528 from 588, we get 60.
Bring next digit (9) of the dividend behind the 60 and repeat the process: 609 / 66

Step 8:
66 goes into 609 9 times with a remainder of 15.
Use 9 as the next digit of our solution. 
Result so far: 791689.0
If we subtract 594 from 609, we get 15.
Since there are no more digits in the dividend, we add a zero to the remainder making it 150, and continue the process.

Step 9:
When dividing 150 by 66, we get 2 with a remainder of 18.
The next digit of our result is 2. 
Result so far: 791689.2
Subtracting 132 from 150 leaves us with 18.
Since there are no more digits in the dividend, we add a zero to the remainder making it 180, and continue the process.

Going ahead to step 10:
66 goes into 180 2 times with a remainder of 48.
Use 2 as the next digit of our solution. 
Result so far: 791689.22
If we take 132 away from 180, we end up 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.

The final outcome is 791689.22, with a leftover of 0.048.