We look at the division of 45066740 by 813 
The aim is to understand the frequency of 813 in 45066740.

Step 1:
813 can be fit into 4 0 times, resulting in a remainder of 4.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Subtract 0 from 4 to get 4.
Grab the next digit (5) from the dividend, add it to 4, then carry on: 45 / 813

On to step 2:
The number 813 fits into 45 0 times, leaving a remainder of 45.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
The remainder is 45 after subtracting 0 from 45.
Fetch the next digit (0) from the dividend, attach it to 45 and continue: 450 / 813

Moving on to step 3:
813 goes into 450 0 times with a remainder of 450.
Write down 0 as next digit of the result. 
Result so far: 0.0
Subtracting 0 from 450 leaves us with 450.
Fetch the next digit (6) from the dividend, attach it to 450 and continue: 4506 / 813

Going ahead to step 4:
If we divide 4506 by 813, we get 5 and a remainder of 441.
Use 5 as the next digit of our solution. 
Result so far: 5.0
If we take 4065 away from 4506, we end up with 441.
Take the next digit (6) from the dividend and append it to 441, then repeat: 4416 / 813

Moving on to step 5:
The number 813 fits into 4416 5 times, leaving a remainder of 351.
Record the quotient 5 as the next digit in the result. 
Result so far: 55.0
Subtracting 4065 from 4416 leaves us with 351.
Include the next digit (7) from the dividend after 351, then repeat: 3517 / 813

Moving on to step 6:
The number 813 fits into 3517 4 times, leaving a remainder of 265.
Record the quotient 4 as the next digit in the result. 
Result so far: 554.0
Subtract 3252 from 3517 to get 265.
Append the next digit (4) from the dividend to 265 and continue with: 2654 / 813

Let's proceed to step 7:
When dividing 2654 by 813, we get 3 with a remainder of 215.
Put 3 as the next digit of the answer. 
Result so far: 5543.0
Deduct 2439 from 2654 and we're left with 215.
Grab the next digit (0) from the dividend, add it to 215, then carry on: 2150 / 813

Advancing to step 8:
If we divide 2150 by 813, we get 2 and a remainder of 524.
The number 2 becomes the next digit in our result. 
Result so far: 55432.0
If we take 1626 away from 2150, we end up with 524.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5240, and continue the process.

Advancing to step 9:
5240 divided by 813 is 6 with a remainder of 362.
Write down 6 as next digit of the result. 
Result so far: 55432.6
If we subtract 4878 from 5240, we get 362.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3620, and continue the process.

Step 10:
3620 divided by 813 is 4 with a remainder of 368.
The number 4 becomes the next digit in our result. 
Result so far: 55432.64
Subtracting 3252 from 3620 leaves us with 368.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3680, and continue the process.

Let's proceed to step 11:
813 can be fit into 3680 4 times, resulting in a remainder of 428.
Use 4 as the next digit of our solution. 
Result so far: 55432.644
If we subtract 3252 from 3680, we get 428.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4280, and continue the process.

The final result is 55432.644 with a remainder of 0.0428.