87104869 ÷ 545 
The aim is to understand the frequency of 545 in 87104869.

Let's proceed to step 1:
If we divide 8 by 545, we get 0 and a remainder of 8.
Write down 0 as next digit of the result. 
Result so far: 0.0
Subtracting 0 from 8 leaves us with 8.
Bring next digit (7) of the dividend behind the 8 and repeat the process: 87 / 545

Advancing to step 2:
545 can be fit into 87 0 times, resulting in a remainder of 87.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Subtracting 0 from 87 leaves us with 87.
Append the next digit (1) from the dividend to 87 and continue with: 871 / 545

Step 3:
871 divided by 545 is 1 with a remainder of 326.
The number 1 becomes the next digit in our result. 
Result so far: 1.0
If we take 545 away from 871, we end up with 326.
Bring next digit (0) of the dividend behind the 326 and repeat the process: 3260 / 545

Let's proceed to step 4:
The number 545 fits into 3260 5 times, leaving a remainder of 535.
The next digit of our result is 5. 
Result so far: 15.0
Deduct 2725 from 3260 and we're left with 535.
Fetch the next digit (4) from the dividend, attach it to 535 and continue: 5354 / 545

Moving on to step 5:
545 goes into 5354 9 times with a remainder of 449.
Use 9 as the next digit of our solution. 
Result so far: 159.0
Deduct 4905 from 5354 and we're left with 449.
Take the next digit (8) from the dividend and append it to 449, then repeat: 4498 / 545

Let's proceed to step 6:
4498 divided by 545 is 8 with a remainder of 138.
The number 8 becomes the next digit in our result. 
Result so far: 1598.0
Subtracting 4360 from 4498 leaves us with 138.
Append the next digit (6) from the dividend to 138 and continue with: 1386 / 545

Going ahead to step 7:
The number 545 fits into 1386 2 times, leaving a remainder of 296.
Record the quotient 2 as the next digit in the result. 
Result so far: 15982.0
The remainder is 296 after subtracting 1090 from 1386.
Fetch the next digit (9) from the dividend, attach it to 296 and continue: 2969 / 545

Advancing to step 8:
545 goes into 2969 5 times with a remainder of 244.
Write down 5 as next digit of the result. 
Result so far: 159825.0
If we take 2725 away from 2969, we end up with 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 9:
If we divide 2440 by 545, we get 4 and a remainder of 260.
Put 4 as the next digit of the answer. 
Result so far: 159825.4
Deduct 2180 from 2440 and we're left with 260.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2600, and continue the process.

Going ahead to step 10:
545 goes into 2600 4 times with a remainder of 420.
Record the quotient 4 as the next digit in the result. 
Result so far: 159825.44
Subtracting 2180 from 2600 leaves us with 420.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4200, and continue the process.

After the division, we end up with 159825.44 and a remainder of 0.42.