45398809 ÷ 522 
The aim is to understand the frequency of 522 in 45398809.

Moving on to step 1:
The number 522 fits into 4 0 times, leaving a remainder of 4.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
If we take 0 away from 4, we end up with 4.
Include the next digit (5) from the dividend after 4, then repeat: 45 / 522

Advancing to step 2:
The number 522 fits into 45 0 times, leaving a remainder of 45.
Write down 0 as next digit of the result. 
Result so far: 0.0
The remainder is 45 after subtracting 0 from 45.
Include the next digit (3) from the dividend after 45, then repeat: 453 / 522

Let's proceed to step 3:
If we divide 453 by 522, we get 0 and a remainder of 453.
Write down 0 as next digit of the result. 
Result so far: 0.0
Deduct 0 from 453 and we're left with 453.
Include the next digit (9) from the dividend after 453, then repeat: 4539 / 522

On to step 4:
522 goes into 4539 8 times with a remainder of 363.
Write down 8 as next digit of the result. 
Result so far: 8.0
Subtracting 4176 from 4539 leaves us with 363.
Take the next digit (8) from the dividend and append it to 363, then repeat: 3638 / 522

Let's proceed to step 5:
The number 522 fits into 3638 6 times, leaving a remainder of 506.
The number 6 becomes the next digit in our result. 
Result so far: 86.0
Subtract 3132 from 3638 to get 506.
Include the next digit (8) from the dividend after 506, then repeat: 5068 / 522

Step 6:
522 goes into 5068 9 times with a remainder of 370.
The number 9 becomes the next digit in our result. 
Result so far: 869.0
Subtracting 4698 from 5068 leaves us with 370.
Grab the next digit (0) from the dividend, add it to 370, then carry on: 3700 / 522

Moving on to step 7:
522 goes into 3700 7 times with a remainder of 46.
The number 7 becomes the next digit in our result. 
Result so far: 8697.0
If we subtract 3654 from 3700, we get 46.
Fetch the next digit (9) from the dividend, attach it to 46 and continue: 469 / 522

Step 8:
469 divided by 522 is 0 with a remainder of 469.
Use 0 as the next digit of our solution. 
Result so far: 86970.0
Subtract 0 from 469 to get 469.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4690, and continue the process.

Going ahead to step 9:
522 can be fit into 4690 8 times, resulting in a remainder of 514.
Put 8 as the next digit of the answer. 
Result so far: 86970.8
Subtract 4176 from 4690 to get 514.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5140, and continue the process.

Moving on to step 10:
When dividing 5140 by 522, we get 9 with a remainder of 442.
Use 9 as the next digit of our solution. 
Result so far: 86970.89
Deduct 4698 from 5140 and we're left with 442.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4420, and continue the process.

Let's proceed to step 11:
522 can be fit into 4420 8 times, resulting in a remainder of 244.
Record the quotient 8 as the next digit in the result. 
Result so far: 86970.898
Subtract 4176 from 4420 to get 244.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2440, and continue the process.

Going ahead to step 12:
If we divide 2440 by 522, we get 4 and a remainder of 352.
Write down 4 as next digit of the result. 
Result so far: 86970.8984
If we subtract 2088 from 2440, we get 352.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3520, and continue the process.

Going ahead to step 13:
If we divide 3520 by 522, we get 6 and a remainder of 388.
The number 6 becomes the next digit in our result. 
Result so far: 86970.89846
The remainder is 388 after subtracting 3132 from 3520.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3880, and continue the process.

Let's proceed to step 14:
If we divide 3880 by 522, we get 7 and a remainder of 226.
The next digit of our result is 7. 
Result so far: 86970.898467
If we take 3654 away from 3880, we end up with 226.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2260, and continue the process.

Going ahead to step 15:
When dividing 2260 by 522, we get 4 with a remainder of 172.
The next digit of our result is 4. 
Result so far: 86970.8984674
The remainder is 172 after subtracting 2088 from 2260.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1720, and continue the process.

Step 16:
If we divide 1720 by 522, we get 3 and a remainder of 154.
The number 3 becomes the next digit in our result. 
Result so far: 86970.89846743
Subtracting 1566 from 1720 leaves us with 154.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1540, and continue the process.

The final result is 86970.89846743 with a remainder of 1.54e-07.