We divide 631685 by 45
The aim is to understand the frequency of 45 in 631685.

Advancing to step 1:
45 can be fit into 6 0 times, resulting in a remainder of 6.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Deduct 0 from 6 and we're left with 6.
Fetch the next digit (3) from the dividend, attach it to 6 and continue: 63 / 45

Going ahead to step 2:
63 divided by 45 is 1 with a remainder of 18.
Put 1 as the next digit of the answer. 
Result so far: 1.0
Subtracting 45 from 63 leaves us with 18.
Grab the next digit (1) from the dividend, add it to 18, then carry on: 181 / 45

Moving on to step 3:
When dividing 181 by 45, we get 4 with a remainder of 1.
Use 4 as the next digit of our solution. 
Result so far: 14.0
Subtracting 180 from 181 leaves us with 1.
Take the next digit (6) from the dividend and append it to 1, then repeat: 16 / 45

On to step 4:
45 can be fit into 16 0 times, resulting in a remainder of 16.
Use 0 as the next digit of our solution. 
Result so far: 140.0
The remainder is 16 after subtracting 0 from 16.
Include the next digit (8) from the dividend after 16, then repeat: 168 / 45

Let's proceed to step 5:
When dividing 168 by 45, we get 3 with a remainder of 33.
The next digit of our result is 3. 
Result so far: 1403.0
If we take 135 away from 168, we end up with 33.
Grab the next digit (5) from the dividend, add it to 33, then carry on: 335 / 45

Moving on to step 6:
45 can be fit into 335 7 times, resulting in a remainder of 20.
The number 7 becomes the next digit in our result. 
Result so far: 14037.0
Subtracting 315 from 335 leaves us with 20.
Since there are no more digits in the dividend, we add a zero to the remainder making it 200, and continue the process.

On to step 7:
45 goes into 200 4 times with a remainder of 20.
The next digit of our result is 4. 
Result so far: 14037.4
Subtracting 180 from 200 leaves us with 20.
Since there are no more digits in the dividend, we add a zero to the remainder making it 200, and continue the process.

Moving on to step 8:
If we divide 200 by 45, we get 4 and a remainder of 20.
Put 4 as the next digit of the answer. 
Result so far: 14037.44
Subtract 180 from 200 to get 20.
Since there are no more digits in the dividend, we add a zero to the remainder making it 200, and continue the process.

The final outcome is 14037.44, with a leftover of 0.02.