We look at the division of 188608 by 45 
The aim is to understand the frequency of 45 in 188608.

On to step 1:
If we divide 1 by 45, we get 0 and a remainder of 1.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Deduct 0 from 1 and we're left with 1.
Fetch the next digit (8) from the dividend, attach it to 1 and continue: 18 / 45

On to step 2:
45 can be fit into 18 0 times, resulting in a remainder of 18.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Subtracting 0 from 18 leaves us with 18.
Fetch the next digit (8) from the dividend, attach it to 18 and continue: 188 / 45

Let's proceed to step 3:
If we divide 188 by 45, we get 4 and a remainder of 8.
Record the quotient 4 as the next digit in the result. 
Result so far: 4.0
Subtracting 180 from 188 leaves us with 8.
Bring next digit (6) of the dividend behind the 8 and repeat the process: 86 / 45

Going ahead to step 4:
If we divide 86 by 45, we get 1 and a remainder of 41.
The number 1 becomes the next digit in our result. 
Result so far: 41.0
If we take 45 away from 86, we end up with 41.
Take the next digit (0) from the dividend and append it to 41, then repeat: 410 / 45

Advancing to step 5:
45 can be fit into 410 9 times, resulting in a remainder of 5.
Write down 9 as next digit of the result. 
Result so far: 419.0
Deduct 405 from 410 and we're left with 5.
Fetch the next digit (8) from the dividend, attach it to 5 and continue: 58 / 45

Going ahead to step 6:
If we divide 58 by 45, we get 1 and a remainder of 13.
Write down 1 as next digit of the result. 
Result so far: 4191.0
Subtract 45 from 58 to get 13.
Since there are no more digits in the dividend, we add a zero to the remainder making it 130, and continue the process.

Moving on to step 7:
45 goes into 130 2 times with a remainder of 40.
Put 2 as the next digit of the answer. 
Result so far: 4191.2
Subtracting 90 from 130 leaves us with 40.
Since there are no more digits in the dividend, we add a zero to the remainder making it 400, and continue the process.

On to step 8:
The number 45 fits into 400 8 times, leaving a remainder of 40.
Record the quotient 8 as the next digit in the result. 
Result so far: 4191.28
If we take 360 away from 400, we end up with 40.
Since there are no more digits in the dividend, we add a zero to the remainder making it 400, and continue the process.

Going ahead to step 9:
The number 45 fits into 400 8 times, leaving a remainder of 40.
The number 8 becomes the next digit in our result. 
Result so far: 4191.288
The remainder is 40 after subtracting 360 from 400.
Since there are no more digits in the dividend, we add a zero to the remainder making it 400, and continue the process.

After the division, we end up with 4191.288 and a remainder of 0.004.