We divide 685024 by 45
The aim is to understand the frequency of 45 in 685024.

Going ahead to step 1:
6 divided by 45 is 0 with a remainder of 6.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Subtracting 0 from 6 leaves us with 6.
Grab the next digit (8) from the dividend, add it to 6, then carry on: 68 / 45

Moving on to step 2:
45 can be fit into 68 1 times, resulting in a remainder of 23.
Put 1 as the next digit of the answer. 
Result so far: 1.0
If we take 45 away from 68, we end up with 23.
Include the next digit (5) from the dividend after 23, then repeat: 235 / 45

On to step 3:
45 goes into 235 5 times with a remainder of 10.
Use 5 as the next digit of our solution. 
Result so far: 15.0
The remainder is 10 after subtracting 225 from 235.
Take the next digit (0) from the dividend and append it to 10, then repeat: 100 / 45

Let's proceed to step 4:
The number 45 fits into 100 2 times, leaving a remainder of 10.
Record the quotient 2 as the next digit in the result. 
Result so far: 152.0
Subtracting 90 from 100 leaves us with 10.
Include the next digit (2) from the dividend after 10, then repeat: 102 / 45

On to step 5:
If we divide 102 by 45, we get 2 and a remainder of 12.
Use 2 as the next digit of our solution. 
Result so far: 1522.0
Subtracting 90 from 102 leaves us with 12.
Fetch the next digit (4) from the dividend, attach it to 12 and continue: 124 / 45

On to step 6:
45 goes into 124 2 times with a remainder of 34.
The next digit of our result is 2. 
Result so far: 15222.0
If we subtract 90 from 124, we get 34.
Since there are no more digits in the dividend, we add a zero to the remainder making it 340, and continue the process.

On to step 7:
If we divide 340 by 45, we get 7 and a remainder of 25.
Put 7 as the next digit of the answer. 
Result so far: 15222.7
Subtracting 315 from 340 leaves us with 25.
Since there are no more digits in the dividend, we add a zero to the remainder making it 250, and continue the process.

Step 8:
The number 45 fits into 250 5 times, leaving a remainder of 25.
The next digit of our result is 5. 
Result so far: 15222.75
The remainder is 25 after subtracting 225 from 250.
Since there are no more digits in the dividend, we add a zero to the remainder making it 250, and continue the process.

On to step 9:
If we divide 250 by 45, we get 5 and a remainder of 25.
Use 5 as the next digit of our solution. 
Result so far: 15222.755
Deduct 225 from 250 and we're left with 25.
Since there are no more digits in the dividend, we add a zero to the remainder making it 250, and continue the process.

The final outcome is 15222.755, with a leftover of 0.0025.