Let's divide 53985253 by 845
The aim is to understand the frequency of 845 in 53985253.

On to step 1:
845 goes into 5 0 times with a remainder of 5.
Use 0 as the next digit of our solution. 
Result so far: 0.0
If we subtract 0 from 5, we get 5.
Grab the next digit (3) from the dividend, add it to 5, then carry on: 53 / 845

Step 2:
53 divided by 845 is 0 with a remainder of 53.
The next digit of our result is 0. 
Result so far: 0.0
If we subtract 0 from 53, we get 53.
Grab the next digit (9) from the dividend, add it to 53, then carry on: 539 / 845

Moving on to step 3:
845 can be fit into 539 0 times, resulting in a remainder of 539.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Subtracting 0 from 539 leaves us with 539.
Bring next digit (8) of the dividend behind the 539 and repeat the process: 5398 / 845

Moving on to step 4:
845 goes into 5398 6 times with a remainder of 328.
The next digit of our result is 6. 
Result so far: 6.0
Deduct 5070 from 5398 and we're left with 328.
Fetch the next digit (5) from the dividend, attach it to 328 and continue: 3285 / 845

Going ahead to step 5:
845 goes into 3285 3 times with a remainder of 750.
Write down 3 as next digit of the result. 
Result so far: 63.0
Deduct 2535 from 3285 and we're left with 750.
Include the next digit (2) from the dividend after 750, then repeat: 7502 / 845

Let's proceed to step 6:
845 can be fit into 7502 8 times, resulting in a remainder of 742.
The number 8 becomes the next digit in our result. 
Result so far: 638.0
Subtracting 6760 from 7502 leaves us with 742.
Append the next digit (5) from the dividend to 742 and continue with: 7425 / 845

Moving on to step 7:
845 can be fit into 7425 8 times, resulting in a remainder of 665.
Use 8 as the next digit of our solution. 
Result so far: 6388.0
If we subtract 6760 from 7425, we get 665.
Bring next digit (3) of the dividend behind the 665 and repeat the process: 6653 / 845

Let's proceed to step 8:
When dividing 6653 by 845, we get 7 with a remainder of 738.
The number 7 becomes the next digit in our result. 
Result so far: 63887.0
Subtract 5915 from 6653 to get 738.
Since there are no more digits in the dividend, we add a zero to the remainder making it 7380, and continue the process.

On to step 9:
The number 845 fits into 7380 8 times, leaving a remainder of 620.
The number 8 becomes the next digit in our result. 
Result so far: 63887.8
Subtract 6760 from 7380 to get 620.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6200, and continue the process.

Going ahead to step 10:
845 can be fit into 6200 7 times, resulting in a remainder of 285.
Put 7 as the next digit of the answer. 
Result so far: 63887.87
Subtract 5915 from 6200 to get 285.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2850, and continue the process.

Advancing to step 11:
If we divide 2850 by 845, we get 3 and a remainder of 315.
Put 3 as the next digit of the answer. 
Result so far: 63887.873
If we subtract 2535 from 2850, we get 315.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3150, and continue the process.

Going ahead to step 12:
When dividing 3150 by 845, we get 3 with a remainder of 615.
The number 3 becomes the next digit in our result. 
Result so far: 63887.8733
If we take 2535 away from 3150, we end up with 615.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6150, and continue the process.

The final outcome is 63887.8733, with a leftover of 0.00615.