75140511 divided by 305 
The aim is to understand the frequency of 305 in 75140511.

Step 1:
The number 305 fits into 7 0 times, leaving a remainder of 7.
The next digit of our result is 0. 
Result so far: 0.0
Subtracting 0 from 7 leaves us with 7.
Take the next digit (5) from the dividend and append it to 7, then repeat: 75 / 305

Moving on to step 2:
305 goes into 75 0 times with a remainder of 75.
Put 0 as the next digit of the answer. 
Result so far: 0.0
If we subtract 0 from 75, we get 75.
Bring next digit (1) of the dividend behind the 75 and repeat the process: 751 / 305

Moving on to step 3:
When dividing 751 by 305, we get 2 with a remainder of 141.
Use 2 as the next digit of our solution. 
Result so far: 2.0
If we subtract 610 from 751, we get 141.
Bring next digit (4) of the dividend behind the 141 and repeat the process: 1414 / 305

Advancing to step 4:
305 goes into 1414 4 times with a remainder of 194.
Use 4 as the next digit of our solution. 
Result so far: 24.0
Subtracting 1220 from 1414 leaves us with 194.
Take the next digit (0) from the dividend and append it to 194, then repeat: 1940 / 305

Step 5:
If we divide 1940 by 305, we get 6 and a remainder of 110.
Use 6 as the next digit of our solution. 
Result so far: 246.0
Subtract 1830 from 1940 to get 110.
Include the next digit (5) from the dividend after 110, then repeat: 1105 / 305

Step 6:
If we divide 1105 by 305, we get 3 and a remainder of 190.
Write down 3 as next digit of the result. 
Result so far: 2463.0
If we take 915 away from 1105, we end up with 190.
Grab the next digit (1) from the dividend, add it to 190, then carry on: 1901 / 305

Step 7:
When dividing 1901 by 305, we get 6 with a remainder of 71.
Put 6 as the next digit of the answer. 
Result so far: 24636.0
If we take 1830 away from 1901, we end up with 71.
Bring next digit (1) of the dividend behind the 71 and repeat the process: 711 / 305

Let's proceed to step 8:
305 goes into 711 2 times with a remainder of 101.
Use 2 as the next digit of our solution. 
Result so far: 246362.0
If we take 610 away from 711, we end up with 101.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1010, and continue the process.

Going ahead to step 9:
When dividing 1010 by 305, we get 3 with a remainder of 95.
Record the quotient 3 as the next digit in the result. 
Result so far: 246362.3
Subtracting 915 from 1010 leaves us with 95.
Since there are no more digits in the dividend, we add a zero to the remainder making it 950, and continue the process.

Step 10:
950 divided by 305 is 3 with a remainder of 35.
Record the quotient 3 as the next digit in the result. 
Result so far: 246362.33
Subtracting 915 from 950 leaves us with 35.
Since there are no more digits in the dividend, we add a zero to the remainder making it 350, and continue the process.

After the division, we end up with 246362.33 and a remainder of 0.035.