91730730 ÷ 450 
The aim is to understand the frequency of 450 in 91730730.

Advancing to step 1:
The number 450 fits into 9 0 times, leaving a remainder of 9.
The next digit of our result is 0. 
Result so far: 0.0
Deduct 0 from 9 and we're left with 9.
Include the next digit (1) from the dividend after 9, then repeat: 91 / 450

Step 2:
If we divide 91 by 450, we get 0 and a remainder of 91.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Deduct 0 from 91 and we're left with 91.
Take the next digit (7) from the dividend and append it to 91, then repeat: 917 / 450

Advancing to step 3:
If we divide 917 by 450, we get 2 and a remainder of 17.
Record the quotient 2 as the next digit in the result. 
Result so far: 2.0
If we subtract 900 from 917, we get 17.
Fetch the next digit (3) from the dividend, attach it to 17 and continue: 173 / 450

On to step 4:
When dividing 173 by 450, we get 0 with a remainder of 173.
Use 0 as the next digit of our solution. 
Result so far: 20.0
If we subtract 0 from 173, we get 173.
Take the next digit (0) from the dividend and append it to 173, then repeat: 1730 / 450

Going ahead to step 5:
450 goes into 1730 3 times with a remainder of 380.
Put 3 as the next digit of the answer. 
Result so far: 203.0
Subtract 1350 from 1730 to get 380.
Grab the next digit (7) from the dividend, add it to 380, then carry on: 3807 / 450

Step 6:
450 goes into 3807 8 times with a remainder of 207.
Use 8 as the next digit of our solution. 
Result so far: 2038.0
Deduct 3600 from 3807 and we're left with 207.
Grab the next digit (3) from the dividend, add it to 207, then carry on: 2073 / 450

Let's proceed to step 7:
2073 divided by 450 is 4 with a remainder of 273.
The number 4 becomes the next digit in our result. 
Result so far: 20384.0
If we take 1800 away from 2073, we end up with 273.
Grab the next digit (0) from the dividend, add it to 273, then carry on: 2730 / 450

Let's proceed to step 8:
450 goes into 2730 6 times with a remainder of 30.
Write down 6 as next digit of the result. 
Result so far: 203846.0
Subtracting 2700 from 2730 leaves us with 30.
Since there are no more digits in the dividend, we add a zero to the remainder making it 300, and continue the process.

Moving on to step 9:
450 goes into 300 0 times with a remainder of 300.
Record the quotient 0 as the next digit in the result. 
Result so far: 203846.0
If we take 0 away from 300, we end up with 300.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3000, and continue the process.

Going ahead to step 10:
3000 divided by 450 is 6 with a remainder of 300.
The number 6 becomes the next digit in our result. 
Result so far: 203846.06
If we subtract 2700 from 3000, we get 300.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3000, and continue the process.

Let's proceed to step 11:
450 goes into 3000 6 times with a remainder of 300.
Use 6 as the next digit of our solution. 
Result so far: 203846.066
The remainder is 300 after subtracting 2700 from 3000.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3000, and continue the process.

The final outcome is 203846.066, with a leftover of 0.03.