We look at the division of 39861292 by 450 
The aim is to understand the frequency of 450 in 39861292.

Step 1:
If we divide 3 by 450, we get 0 and a remainder of 3.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
If we subtract 0 from 3, we get 3.
Bring next digit (9) of the dividend behind the 3 and repeat the process: 39 / 450

Going ahead to step 2:
450 can be fit into 39 0 times, resulting in a remainder of 39.
Write down 0 as next digit of the result. 
Result so far: 0.0
The remainder is 39 after subtracting 0 from 39.
Append the next digit (8) from the dividend to 39 and continue with: 398 / 450

Going ahead to step 3:
398 divided by 450 is 0 with a remainder of 398.
Put 0 as the next digit of the answer. 
Result so far: 0.0
If we take 0 away from 398, we end up with 398.
Bring next digit (6) of the dividend behind the 398 and repeat the process: 3986 / 450

Moving on to step 4:
If we divide 3986 by 450, we get 8 and a remainder of 386.
Write down 8 as next digit of the result. 
Result so far: 8.0
If we subtract 3600 from 3986, we get 386.
Include the next digit (1) from the dividend after 386, then repeat: 3861 / 450

Let's proceed to step 5:
450 goes into 3861 8 times with a remainder of 261.
Record the quotient 8 as the next digit in the result. 
Result so far: 88.0
Subtract 3600 from 3861 to get 261.
Take the next digit (2) from the dividend and append it to 261, then repeat: 2612 / 450

Going ahead to step 6:
When dividing 2612 by 450, we get 5 with a remainder of 362.
The next digit of our result is 5. 
Result so far: 885.0
If we take 2250 away from 2612, we end up with 362.
Fetch the next digit (9) from the dividend, attach it to 362 and continue: 3629 / 450

Step 7:
450 goes into 3629 8 times with a remainder of 29.
Record the quotient 8 as the next digit in the result. 
Result so far: 8858.0
If we subtract 3600 from 3629, we get 29.
Fetch the next digit (2) from the dividend, attach it to 29 and continue: 292 / 450

Advancing to step 8:
The number 450 fits into 292 0 times, leaving a remainder of 292.
Write down 0 as next digit of the result. 
Result so far: 88580.0
The remainder is 292 after subtracting 0 from 292.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2920, and continue the process.

Moving on to step 9:
450 goes into 2920 6 times with a remainder of 220.
Write down 6 as next digit of the result. 
Result so far: 88580.6
Deduct 2700 from 2920 and we're left with 220.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2200, and continue the process.

Step 10:
450 can be fit into 2200 4 times, resulting in a remainder of 400.
The next digit of our result is 4. 
Result so far: 88580.64
Deduct 1800 from 2200 and we're left with 400.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4000, and continue the process.

Moving on to step 11:
4000 divided by 450 is 8 with a remainder of 400.
Write down 8 as next digit of the result. 
Result so far: 88580.648
If we subtract 3600 from 4000, we get 400.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4000, and continue the process.

Moving on to step 12:
4000 divided by 450 is 8 with a remainder of 400.
Use 8 as the next digit of our solution. 
Result so far: 88580.6488
Deduct 3600 from 4000 and we're left with 400.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4000, and continue the process.

The quotient of the division is 88580.6488, and the remainder is 0.004.