8653559 divided by 45 
The aim is to understand the frequency of 45 in 8653559.

Going ahead to step 1:
When dividing 8 by 45, we get 0 with a remainder of 8.
Use 0 as the next digit of our solution. 
Result so far: 0.0
The remainder is 8 after subtracting 0 from 8.
Bring next digit (6) of the dividend behind the 8 and repeat the process: 86 / 45

On to step 2:
If we divide 86 by 45, we get 1 and a remainder of 41.
Use 1 as the next digit of our solution. 
Result so far: 1.0
Deduct 45 from 86 and we're left with 41.
Bring next digit (5) of the dividend behind the 41 and repeat the process: 415 / 45

On to step 3:
45 goes into 415 9 times with a remainder of 10.
Use 9 as the next digit of our solution. 
Result so far: 19.0
Subtracting 405 from 415 leaves us with 10.
Fetch the next digit (3) from the dividend, attach it to 10 and continue: 103 / 45

Step 4:
103 divided by 45 is 2 with a remainder of 13.
Write down 2 as next digit of the result. 
Result so far: 192.0
The remainder is 13 after subtracting 90 from 103.
Fetch the next digit (5) from the dividend, attach it to 13 and continue: 135 / 45

Let's proceed to step 5:
45 can be fit into 135 3 times, resulting in a remainder of 0.
The next digit of our result is 3. 
Result so far: 1923.0
The remainder is 0 after subtracting 135 from 135.
Include the next digit (5) from the dividend after 0, then repeat: 5 / 45

Moving on to step 6:
When dividing 5 by 45, we get 0 with a remainder of 5.
Write down 0 as next digit of the result. 
Result so far: 19230.0
If we subtract 0 from 5, we get 5.
Append the next digit (9) from the dividend to 5 and continue with: 59 / 45

Going ahead to step 7:
If we divide 59 by 45, we get 1 and a remainder of 14.
Record the quotient 1 as the next digit in the result. 
Result so far: 192301.0
Subtracting 45 from 59 leaves us with 14.
Since there are no more digits in the dividend, we add a zero to the remainder making it 140, and continue the process.

On to step 8:
45 goes into 140 3 times with a remainder of 5.
Use 3 as the next digit of our solution. 
Result so far: 192301.3
If we subtract 135 from 140, we get 5.
Since there are no more digits in the dividend, we add a zero to the remainder making it 50, and continue the process.

Advancing to step 9:
45 goes into 50 1 times with a remainder of 5.
The next digit of our result is 1. 
Result so far: 192301.31
Deduct 45 from 50 and we're left with 5.
Since there are no more digits in the dividend, we add a zero to the remainder making it 50, and continue the process.

Let's proceed to step 10:
If we divide 50 by 45, we get 1 and a remainder of 5.
Put 1 as the next digit of the answer. 
Result so far: 192301.311
Deduct 45 from 50 and we're left with 5.
Since there are no more digits in the dividend, we add a zero to the remainder making it 50, and continue the process.

Our division results in 192301.311 with a remaining 0.0005.