We divide 495604 by 45
The aim is to understand the frequency of 45 in 495604.

On to step 1:
If we divide 4 by 45, we get 0 and a remainder of 4.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Deduct 0 from 4 and we're left with 4.
Append the next digit (9) from the dividend to 4 and continue with: 49 / 45

Advancing to step 2:
If we divide 49 by 45, we get 1 and a remainder of 4.
Use 1 as the next digit of our solution. 
Result so far: 1.0
Subtract 45 from 49 to get 4.
Append the next digit (5) from the dividend to 4 and continue with: 45 / 45

Going ahead to step 3:
When dividing 45 by 45, we get 1 with a remainder of 0.
Put 1 as the next digit of the answer. 
Result so far: 11.0
Subtracting 45 from 45 leaves us with 0.
Grab the next digit (6) from the dividend, add it to 0, then carry on: 6 / 45

Advancing to step 4:
The number 45 fits into 6 0 times, leaving a remainder of 6.
Write down 0 as next digit of the result. 
Result so far: 110.0
Deduct 0 from 6 and we're left with 6.
Take the next digit (0) from the dividend and append it to 6, then repeat: 60 / 45

Moving on to step 5:
When dividing 60 by 45, we get 1 with a remainder of 15.
Record the quotient 1 as the next digit in the result. 
Result so far: 1101.0
Subtract 45 from 60 to get 15.
Take the next digit (4) from the dividend and append it to 15, then repeat: 154 / 45

On to step 6:
If we divide 154 by 45, we get 3 and a remainder of 19.
Put 3 as the next digit of the answer. 
Result so far: 11013.0
The remainder is 19 after subtracting 135 from 154.
Since there are no more digits in the dividend, we add a zero to the remainder making it 190, and continue the process.

Moving on to step 7:
45 goes into 190 4 times with a remainder of 10.
The number 4 becomes the next digit in our result. 
Result so far: 11013.4
Deduct 180 from 190 and we're left with 10.
Since there are no more digits in the dividend, we add a zero to the remainder making it 100, and continue the process.

Moving on to step 8:
45 can be fit into 100 2 times, resulting in a remainder of 10.
Use 2 as the next digit of our solution. 
Result so far: 11013.42
Deduct 90 from 100 and we're left with 10.
Since there are no more digits in the dividend, we add a zero to the remainder making it 100, and continue the process.

Advancing to step 9:
45 can be fit into 100 2 times, resulting in a remainder of 10.
The number 2 becomes the next digit in our result. 
Result so far: 11013.422
If we subtract 90 from 100, we get 10.
Since there are no more digits in the dividend, we add a zero to the remainder making it 100, and continue the process.

The quotient of the division is 11013.422, and the remainder is 0.001.