625901 divided by 45 
The aim is to understand the frequency of 45 in 625901.

Moving on to step 1:
45 can be fit into 6 0 times, resulting in a remainder of 6.
The next digit of our result is 0. 
Result so far: 0.0
If we take 0 away from 6, we end up with 6.
Fetch the next digit (2) from the dividend, attach it to 6 and continue: 62 / 45

On to step 2:
When dividing 62 by 45, we get 1 with a remainder of 17.
Put 1 as the next digit of the answer. 
Result so far: 1.0
If we subtract 45 from 62, we get 17.
Grab the next digit (5) from the dividend, add it to 17, then carry on: 175 / 45

Let's proceed to step 3:
45 goes into 175 3 times with a remainder of 40.
The number 3 becomes the next digit in our result. 
Result so far: 13.0
If we subtract 135 from 175, we get 40.
Append the next digit (9) from the dividend to 40 and continue with: 409 / 45

Let's proceed to step 4:
45 goes into 409 9 times with a remainder of 4.
Record the quotient 9 as the next digit in the result. 
Result so far: 139.0
Subtract 405 from 409 to get 4.
Fetch the next digit (0) from the dividend, attach it to 4 and continue: 40 / 45

Moving on to step 5:
45 goes into 40 0 times with a remainder of 40.
The number 0 becomes the next digit in our result. 
Result so far: 1390.0
Deduct 0 from 40 and we're left with 40.
Include the next digit (1) from the dividend after 40, then repeat: 401 / 45

Advancing to step 6:
401 divided by 45 is 8 with a remainder of 41.
Write down 8 as next digit of the result. 
Result so far: 13908.0
The remainder is 41 after subtracting 360 from 401.
Since there are no more digits in the dividend, we add a zero to the remainder making it 410, and continue the process.

On to step 7:
The number 45 fits into 410 9 times, leaving a remainder of 5.
Put 9 as the next digit of the answer. 
Result so far: 13908.9
If we take 405 away from 410, we end up 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 8:
If we divide 50 by 45, we get 1 and a remainder of 5.
The number 1 becomes the next digit in our result. 
Result so far: 13908.91
If we take 45 away from 50, we end up 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.

Step 9:
50 divided by 45 is 1 with a remainder of 5.
Record the quotient 1 as the next digit in the result. 
Result so far: 13908.911
Subtract 45 from 50 to 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.

The quotient of the division is 13908.911, and the remainder is 0.0005.