Let's divide 429877 by 45
The aim is to understand the frequency of 45 in 429877.

Step 1:
When dividing 4 by 45, we get 0 with a remainder of 4.
Write down 0 as next digit of the result. 
Result so far: 0.0
Subtract 0 from 4 to get 4.
Fetch the next digit (2) from the dividend, attach it to 4 and continue: 42 / 45

Let's proceed to step 2:
When dividing 42 by 45, we get 0 with a remainder of 42.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Subtract 0 from 42 to get 42.
Include the next digit (9) from the dividend after 42, then repeat: 429 / 45

Moving on to step 3:
429 divided by 45 is 9 with a remainder of 24.
Put 9 as the next digit of the answer. 
Result so far: 9.0
Deduct 405 from 429 and we're left with 24.
Grab the next digit (8) from the dividend, add it to 24, then carry on: 248 / 45

Going ahead to step 4:
When dividing 248 by 45, we get 5 with a remainder of 23.
The number 5 becomes the next digit in our result. 
Result so far: 95.0
Subtract 225 from 248 to get 23.
Take the next digit (7) from the dividend and append it to 23, then repeat: 237 / 45

On to step 5:
When dividing 237 by 45, we get 5 with a remainder of 12.
The next digit of our result is 5. 
Result so far: 955.0
If we subtract 225 from 237, we get 12.
Include the next digit (7) from the dividend after 12, then repeat: 127 / 45

On to step 6:
If we divide 127 by 45, we get 2 and a remainder of 37.
Record the quotient 2 as the next digit in the result. 
Result so far: 9552.0
If we subtract 90 from 127, we get 37.
Since there are no more digits in the dividend, we add a zero to the remainder making it 370, and continue the process.

Step 7:
45 goes into 370 8 times with a remainder of 10.
Use 8 as the next digit of our solution. 
Result so far: 9552.8
The remainder is 10 after subtracting 360 from 370.
Since there are no more digits in the dividend, we add a zero to the remainder making it 100, and continue the process.

Step 8:
If we divide 100 by 45, we get 2 and a remainder of 10.
The next digit of our result is 2. 
Result so far: 9552.82
The remainder is 10 after subtracting 90 from 100.
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:
The number 45 fits into 100 2 times, leaving a remainder of 10.
Put 2 as the next digit of the answer. 
Result so far: 9552.822
Subtract 90 from 100 to 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 final outcome is 9552.822, with a leftover of 0.001.