We look at the division of 62429515 by 450 
The aim is to understand the frequency of 450 in 62429515.

Step 1:
The number 450 fits into 6 0 times, leaving a remainder of 6.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Subtracting 0 from 6 leaves us with 6.
Bring next digit (2) of the dividend behind the 6 and repeat the process: 62 / 450

Advancing to step 2:
When dividing 62 by 450, we get 0 with a remainder of 62.
Use 0 as the next digit of our solution. 
Result so far: 0.0
If we take 0 away from 62, we end up with 62.
Bring next digit (4) of the dividend behind the 62 and repeat the process: 624 / 450

Let's proceed to step 3:
624 divided by 450 is 1 with a remainder of 174.
Record the quotient 1 as the next digit in the result. 
Result so far: 1.0
If we subtract 450 from 624, we get 174.
Take the next digit (2) from the dividend and append it to 174, then repeat: 1742 / 450

On to step 4:
450 goes into 1742 3 times with a remainder of 392.
Write down 3 as next digit of the result. 
Result so far: 13.0
If we take 1350 away from 1742, we end up with 392.
Bring next digit (9) of the dividend behind the 392 and repeat the process: 3929 / 450

Moving on to step 5:
When dividing 3929 by 450, we get 8 with a remainder of 329.
Put 8 as the next digit of the answer. 
Result so far: 138.0
The remainder is 329 after subtracting 3600 from 3929.
Grab the next digit (5) from the dividend, add it to 329, then carry on: 3295 / 450

Going ahead to step 6:
3295 divided by 450 is 7 with a remainder of 145.
Use 7 as the next digit of our solution. 
Result so far: 1387.0
If we take 3150 away from 3295, we end up with 145.
Take the next digit (1) from the dividend and append it to 145, then repeat: 1451 / 450

Moving on to step 7:
When dividing 1451 by 450, we get 3 with a remainder of 101.
The number 3 becomes the next digit in our result. 
Result so far: 13873.0
If we subtract 1350 from 1451, we get 101.
Include the next digit (5) from the dividend after 101, then repeat: 1015 / 450

Step 8:
1015 divided by 450 is 2 with a remainder of 115.
Write down 2 as next digit of the result. 
Result so far: 138732.0
Subtracting 900 from 1015 leaves us with 115.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1150, and continue the process.

Advancing to step 9:
When dividing 1150 by 450, we get 2 with a remainder of 250.
The next digit of our result is 2. 
Result so far: 138732.2
If we take 900 away from 1150, we end up with 250.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2500, and continue the process.

Step 10:
The number 450 fits into 2500 5 times, leaving a remainder of 250.
Use 5 as the next digit of our solution. 
Result so far: 138732.25
Subtracting 2250 from 2500 leaves us with 250.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2500, and continue the process.

Moving on to step 11:
If we divide 2500 by 450, we get 5 and a remainder of 250.
The number 5 becomes the next digit in our result. 
Result so far: 138732.255
Subtract 2250 from 2500 to get 250.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2500, and continue the process.

The quotient of the division is 138732.255, and the remainder is 0.025.