42546543 ÷ 180 
The aim is to understand the frequency of 180 in 42546543.

Advancing to step 1:
When dividing 4 by 180, we get 0 with a remainder of 4.
The next digit of our result is 0. 
Result so far: 0.0
Subtract 0 from 4 to get 4.
Take the next digit (2) from the dividend and append it to 4, then repeat: 42 / 180

Moving on to step 2:
180 can be fit into 42 0 times, resulting in a remainder of 42.
Write down 0 as next digit of the result. 
Result so far: 0.0
If we take 0 away from 42, we end up with 42.
Grab the next digit (5) from the dividend, add it to 42, then carry on: 425 / 180

Moving on to step 3:
180 can be fit into 425 2 times, resulting in a remainder of 65.
The next digit of our result is 2. 
Result so far: 2.0
The remainder is 65 after subtracting 360 from 425.
Bring next digit (4) of the dividend behind the 65 and repeat the process: 654 / 180

Let's proceed to step 4:
654 divided by 180 is 3 with a remainder of 114.
Put 3 as the next digit of the answer. 
Result so far: 23.0
Subtract 540 from 654 to get 114.
Include the next digit (6) from the dividend after 114, then repeat: 1146 / 180

Step 5:
180 goes into 1146 6 times with a remainder of 66.
Write down 6 as next digit of the result. 
Result so far: 236.0
If we take 1080 away from 1146, we end up with 66.
Grab the next digit (5) from the dividend, add it to 66, then carry on: 665 / 180

Going ahead to step 6:
180 can be fit into 665 3 times, resulting in a remainder of 125.
The number 3 becomes the next digit in our result. 
Result so far: 2363.0
The remainder is 125 after subtracting 540 from 665.
Take the next digit (4) from the dividend and append it to 125, then repeat: 1254 / 180

Advancing to step 7:
When dividing 1254 by 180, we get 6 with a remainder of 174.
Record the quotient 6 as the next digit in the result. 
Result so far: 23636.0
If we subtract 1080 from 1254, we get 174.
Bring next digit (3) of the dividend behind the 174 and repeat the process: 1743 / 180

Step 8:
The number 180 fits into 1743 9 times, leaving a remainder of 123.
Write down 9 as next digit of the result. 
Result so far: 236369.0
The remainder is 123 after subtracting 1620 from 1743.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1230, and continue the process.

Moving on to step 9:
When dividing 1230 by 180, we get 6 with a remainder of 150.
Use 6 as the next digit of our solution. 
Result so far: 236369.6
If we subtract 1080 from 1230, we get 150.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1500, and continue the process.

Moving on to step 10:
The number 180 fits into 1500 8 times, leaving a remainder of 60.
Use 8 as the next digit of our solution. 
Result so far: 236369.68
Deduct 1440 from 1500 and we're left with 60.
Since there are no more digits in the dividend, we add a zero to the remainder making it 600, and continue the process.

Step 11:
180 goes into 600 3 times with a remainder of 60.
Put 3 as the next digit of the answer. 
Result so far: 236369.683
The remainder is 60 after subtracting 540 from 600.
Since there are no more digits in the dividend, we add a zero to the remainder making it 600, and continue the process.

Going ahead to step 12:
180 can be fit into 600 3 times, resulting in a remainder of 60.
Use 3 as the next digit of our solution. 
Result so far: 236369.6833
If we take 540 away from 600, we end up with 60.
Since there are no more digits in the dividend, we add a zero to the remainder making it 600, and continue the process.

The final outcome is 236369.6833, with a leftover of 0.0006.