80443073 ÷ 600 
The aim is to understand the frequency of 600 in 80443073.

Going ahead to step 1:
600 can be fit into 8 0 times, resulting in a remainder of 8.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Deduct 0 from 8 and we're left with 8.
Take the next digit (0) from the dividend and append it to 8, then repeat: 80 / 600

Step 2:
When dividing 80 by 600, we get 0 with a remainder of 80.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
The remainder is 80 after subtracting 0 from 80.
Take the next digit (4) from the dividend and append it to 80, then repeat: 804 / 600

Step 3:
When dividing 804 by 600, we get 1 with a remainder of 204.
Write down 1 as next digit of the result. 
Result so far: 1.0
Subtracting 600 from 804 leaves us with 204.
Append the next digit (4) from the dividend to 204 and continue with: 2044 / 600

Advancing to step 4:
600 can be fit into 2044 3 times, resulting in a remainder of 244.
Record the quotient 3 as the next digit in the result. 
Result so far: 13.0
Subtracting 1800 from 2044 leaves us with 244.
Bring next digit (3) of the dividend behind the 244 and repeat the process: 2443 / 600

Going ahead to step 5:
2443 divided by 600 is 4 with a remainder of 43.
The next digit of our result is 4. 
Result so far: 134.0
Deduct 2400 from 2443 and we're left with 43.
Fetch the next digit (0) from the dividend, attach it to 43 and continue: 430 / 600

Going ahead to step 6:
600 goes into 430 0 times with a remainder of 430.
Record the quotient 0 as the next digit in the result. 
Result so far: 1340.0
If we subtract 0 from 430, we get 430.
Take the next digit (7) from the dividend and append it to 430, then repeat: 4307 / 600

On to step 7:
4307 divided by 600 is 7 with a remainder of 107.
Use 7 as the next digit of our solution. 
Result so far: 13407.0
The remainder is 107 after subtracting 4200 from 4307.
Include the next digit (3) from the dividend after 107, then repeat: 1073 / 600

Advancing to step 8:
1073 divided by 600 is 1 with a remainder of 473.
The next digit of our result is 1. 
Result so far: 134071.0
Subtracting 600 from 1073 leaves us with 473.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4730, and continue the process.

Going ahead to step 9:
If we divide 4730 by 600, we get 7 and a remainder of 530.
Put 7 as the next digit of the answer. 
Result so far: 134071.7
Subtract 4200 from 4730 to get 530.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5300, and continue the process.

Going ahead to step 10:
When dividing 5300 by 600, we get 8 with a remainder of 500.
Record the quotient 8 as the next digit in the result. 
Result so far: 134071.78
Subtracting 4800 from 5300 leaves us with 500.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5000, and continue the process.

Moving on to step 11:
5000 divided by 600 is 8 with a remainder of 200.
The number 8 becomes the next digit in our result. 
Result so far: 134071.788
If we take 4800 away from 5000, we end up with 200.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2000, and continue the process.

The final result is 134071.788 with a remainder of 0.02.