53355461 ÷ 873 
The aim is to understand the frequency of 873 in 53355461.

Step 1:
When dividing 5 by 873, we get 0 with a remainder of 5.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Deduct 0 from 5 and we're left with 5.
Grab the next digit (3) from the dividend, add it to 5, then carry on: 53 / 873

Moving on to step 2:
53 divided by 873 is 0 with a remainder of 53.
Write down 0 as next digit of the result. 
Result so far: 0.0
If we subtract 0 from 53, we get 53.
Grab the next digit (3) from the dividend, add it to 53, then carry on: 533 / 873

Going ahead to step 3:
873 can be fit into 533 0 times, resulting in a remainder of 533.
The next digit of our result is 0. 
Result so far: 0.0
Deduct 0 from 533 and we're left with 533.
Append the next digit (5) from the dividend to 533 and continue with: 5335 / 873

On to step 4:
When dividing 5335 by 873, we get 6 with a remainder of 97.
Record the quotient 6 as the next digit in the result. 
Result so far: 6.0
If we take 5238 away from 5335, we end up with 97.
Fetch the next digit (5) from the dividend, attach it to 97 and continue: 975 / 873

Moving on to step 5:
873 goes into 975 1 times with a remainder of 102.
Write down 1 as next digit of the result. 
Result so far: 61.0
If we subtract 873 from 975, we get 102.
Append the next digit (4) from the dividend to 102 and continue with: 1024 / 873

Let's proceed to step 6:
The number 873 fits into 1024 1 times, leaving a remainder of 151.
The next digit of our result is 1. 
Result so far: 611.0
Subtracting 873 from 1024 leaves us with 151.
Append the next digit (6) from the dividend to 151 and continue with: 1516 / 873

Moving on to step 7:
When dividing 1516 by 873, we get 1 with a remainder of 643.
Put 1 as the next digit of the answer. 
Result so far: 6111.0
Subtracting 873 from 1516 leaves us with 643.
Fetch the next digit (1) from the dividend, attach it to 643 and continue: 6431 / 873

Let's proceed to step 8:
6431 divided by 873 is 7 with a remainder of 320.
Use 7 as the next digit of our solution. 
Result so far: 61117.0
If we take 6111 away from 6431, we end up with 320.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3200, and continue the process.

Step 9:
If we divide 3200 by 873, we get 3 and a remainder of 581.
The number 3 becomes the next digit in our result. 
Result so far: 61117.3
If we take 2619 away from 3200, we end up with 581.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5810, and continue the process.

Advancing to step 10:
873 goes into 5810 6 times with a remainder of 572.
Record the quotient 6 as the next digit in the result. 
Result so far: 61117.36
Subtract 5238 from 5810 to get 572.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5720, and continue the process.

Moving on to step 11:
873 goes into 5720 6 times with a remainder of 482.
The next digit of our result is 6. 
Result so far: 61117.366
If we take 5238 away from 5720, we end up with 482.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4820, and continue the process.

The final outcome is 61117.366, with a leftover of 0.0482.