450360 ÷ 43 
The aim is to understand the frequency of 43 in 450360.

Going ahead to step 1:
43 goes into 4 0 times with a remainder of 4.
Write down 0 as next digit of the result. 
Result so far: 0.0
If we subtract 0 from 4, we get 4.
Include the next digit (5) from the dividend after 4, then repeat: 45 / 43

Let's proceed to step 2:
43 goes into 45 1 times with a remainder of 2.
Use 1 as the next digit of our solution. 
Result so far: 1.0
Deduct 43 from 45 and we're left with 2.
Grab the next digit (0) from the dividend, add it to 2, then carry on: 20 / 43

On to step 3:
The number 43 fits into 20 0 times, leaving a remainder of 20.
The number 0 becomes the next digit in our result. 
Result so far: 10.0
Subtract 0 from 20 to get 20.
Grab the next digit (3) from the dividend, add it to 20, then carry on: 203 / 43

Moving on to step 4:
When dividing 203 by 43, we get 4 with a remainder of 31.
The number 4 becomes the next digit in our result. 
Result so far: 104.0
The remainder is 31 after subtracting 172 from 203.
Append the next digit (6) from the dividend to 31 and continue with: 316 / 43

Moving on to step 5:
When dividing 316 by 43, we get 7 with a remainder of 15.
Write down 7 as next digit of the result. 
Result so far: 1047.0
If we subtract 301 from 316, we get 15.
Fetch the next digit (0) from the dividend, attach it to 15 and continue: 150 / 43

On to step 6:
The number 43 fits into 150 3 times, leaving a remainder of 21.
Write down 3 as next digit of the result. 
Result so far: 10473.0
If we subtract 129 from 150, we get 21.
Since there are no more digits in the dividend, we add a zero to the remainder making it 210, and continue the process.

Step 7:
The number 43 fits into 210 4 times, leaving a remainder of 38.
The next digit of our result is 4. 
Result so far: 10473.4
If we take 172 away from 210, we end up with 38.
Since there are no more digits in the dividend, we add a zero to the remainder making it 380, and continue the process.

On to step 8:
If we divide 380 by 43, we get 8 and a remainder of 36.
Use 8 as the next digit of our solution. 
Result so far: 10473.48
If we subtract 344 from 380, we get 36.
Since there are no more digits in the dividend, we add a zero to the remainder making it 360, and continue the process.

Step 9:
When dividing 360 by 43, we get 8 with a remainder of 16.
Record the quotient 8 as the next digit in the result. 
Result so far: 10473.488
If we subtract 344 from 360, we get 16.
Since there are no more digits in the dividend, we add a zero to the remainder making it 160, and continue the process.

The final outcome is 10473.488, with a leftover of 0.0016.