We divide 315583 by 45
The aim is to understand the frequency of 45 in 315583.

Moving on to step 1:
45 can be fit into 3 0 times, resulting in a remainder of 3.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
If we subtract 0 from 3, we get 3.
Append the next digit (1) from the dividend to 3 and continue with: 31 / 45

On to step 2:
The number 45 fits into 31 0 times, leaving a remainder of 31.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Deduct 0 from 31 and we're left with 31.
Bring next digit (5) of the dividend behind the 31 and repeat the process: 315 / 45

Let's proceed to step 3:
45 can be fit into 315 7 times, resulting in a remainder of 0.
Write down 7 as next digit of the result. 
Result so far: 7.0
Deduct 315 from 315 and we're left with 0.
Bring next digit (5) of the dividend behind the 0 and repeat the process: 5 / 45

On to step 4:
The number 45 fits into 5 0 times, leaving a remainder of 5.
The number 0 becomes the next digit in our result. 
Result so far: 70.0
Subtract 0 from 5 to get 5.
Grab the next digit (8) from the dividend, add it to 5, then carry on: 58 / 45

On to step 5:
45 can be fit into 58 1 times, resulting in a remainder of 13.
Record the quotient 1 as the next digit in the result. 
Result so far: 701.0
Subtracting 45 from 58 leaves us with 13.
Grab the next digit (3) from the dividend, add it to 13, then carry on: 133 / 45

Step 6:
The number 45 fits into 133 2 times, leaving a remainder of 43.
Use 2 as the next digit of our solution. 
Result so far: 7012.0
The remainder is 43 after subtracting 90 from 133.
Since there are no more digits in the dividend, we add a zero to the remainder making it 430, and continue the process.

Moving on to step 7:
When dividing 430 by 45, we get 9 with a remainder of 25.
Record the quotient 9 as the next digit in the result. 
Result so far: 7012.9
If we subtract 405 from 430, we get 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 number 5 becomes the next digit in our result. 
Result so far: 7012.95
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.

Going ahead to step 9:
The number 45 fits into 250 5 times, leaving a remainder of 25.
Use 5 as the next digit of our solution. 
Result so far: 7012.955
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.

After the division, we end up with 7012.955 and a remainder of 0.0025.