We divide 336219 by 45
The aim is to understand the frequency of 45 in 336219.

Moving on to step 1:
When dividing 3 by 45, we get 0 with a remainder of 3.
Put 0 as the next digit of the answer. 
Result so far: 0.0
The remainder is 3 after subtracting 0 from 3.
Fetch the next digit (3) from the dividend, attach it to 3 and continue: 33 / 45

On to step 2:
33 divided by 45 is 0 with a remainder of 33.
Use 0 as the next digit of our solution. 
Result so far: 0.0
If we take 0 away from 33, we end up with 33.
Fetch the next digit (6) from the dividend, attach it to 33 and continue: 336 / 45

Advancing to step 3:
The number 45 fits into 336 7 times, leaving a remainder of 21.
Write down 7 as next digit of the result. 
Result so far: 7.0
Subtracting 315 from 336 leaves us with 21.
Include the next digit (2) from the dividend after 21, then repeat: 212 / 45

Going ahead to step 4:
If we divide 212 by 45, we get 4 and a remainder of 32.
Put 4 as the next digit of the answer. 
Result so far: 74.0
Subtracting 180 from 212 leaves us with 32.
Bring next digit (1) of the dividend behind the 32 and repeat the process: 321 / 45

Step 5:
45 can be fit into 321 7 times, resulting in a remainder of 6.
Write down 7 as next digit of the result. 
Result so far: 747.0
Subtract 315 from 321 to get 6.
Bring next digit (9) of the dividend behind the 6 and repeat the process: 69 / 45

Let's proceed to step 6:
45 can be fit into 69 1 times, resulting in a remainder of 24.
The next digit of our result is 1. 
Result so far: 7471.0
Subtracting 45 from 69 leaves us with 24.
Since there are no more digits in the dividend, we add a zero to the remainder making it 240, and continue the process.

On to step 7:
When dividing 240 by 45, we get 5 with a remainder of 15.
Record the quotient 5 as the next digit in the result. 
Result so far: 7471.5
The remainder is 15 after subtracting 225 from 240.
Since there are no more digits in the dividend, we add a zero to the remainder making it 150, and continue the process.

Going ahead to step 8:
45 can be fit into 150 3 times, resulting in a remainder of 15.
The next digit of our result is 3. 
Result so far: 7471.53
The remainder is 15 after subtracting 135 from 150.
Since there are no more digits in the dividend, we add a zero to the remainder making it 150, and continue the process.

Going ahead to step 9:
45 goes into 150 3 times with a remainder of 15.
Use 3 as the next digit of our solution. 
Result so far: 7471.533
Subtract 135 from 150 to get 15.
Since there are no more digits in the dividend, we add a zero to the remainder making it 150, and continue the process.

After the division, we end up with 7471.533 and a remainder of 0.0015.