75060945 ÷ 153 
The aim is to understand the frequency of 153 in 75060945.

Advancing to step 1:
When dividing 7 by 153, we get 0 with a remainder of 7.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Subtract 0 from 7 to get 7.
Append the next digit (5) from the dividend to 7 and continue with: 75 / 153

Going ahead to step 2:
The number 153 fits into 75 0 times, leaving a remainder of 75.
The next digit of our result is 0. 
Result so far: 0.0
Subtract 0 from 75 to get 75.
Fetch the next digit (0) from the dividend, attach it to 75 and continue: 750 / 153

On to step 3:
153 can be fit into 750 4 times, resulting in a remainder of 138.
Record the quotient 4 as the next digit in the result. 
Result so far: 4.0
Deduct 612 from 750 and we're left with 138.
Take the next digit (6) from the dividend and append it to 138, then repeat: 1386 / 153

On to step 4:
1386 divided by 153 is 9 with a remainder of 9.
Use 9 as the next digit of our solution. 
Result so far: 49.0
If we subtract 1377 from 1386, we get 9.
Take the next digit (0) from the dividend and append it to 9, then repeat: 90 / 153

Going ahead to step 5:
If we divide 90 by 153, we get 0 and a remainder of 90.
Use 0 as the next digit of our solution. 
Result so far: 490.0
If we take 0 away from 90, we end up with 90.
Bring next digit (9) of the dividend behind the 90 and repeat the process: 909 / 153

Step 6:
The number 153 fits into 909 5 times, leaving a remainder of 144.
The next digit of our result is 5. 
Result so far: 4905.0
If we subtract 765 from 909, we get 144.
Bring next digit (4) of the dividend behind the 144 and repeat the process: 1444 / 153

Let's proceed to step 7:
1444 divided by 153 is 9 with a remainder of 67.
Put 9 as the next digit of the answer. 
Result so far: 49059.0
The remainder is 67 after subtracting 1377 from 1444.
Include the next digit (5) from the dividend after 67, then repeat: 675 / 153

Going ahead to step 8:
153 can be fit into 675 4 times, resulting in a remainder of 63.
The next digit of our result is 4. 
Result so far: 490594.0
The remainder is 63 after subtracting 612 from 675.
Since there are no more digits in the dividend, we add a zero to the remainder making it 630, and continue the process.

Advancing to step 9:
153 goes into 630 4 times with a remainder of 18.
Record the quotient 4 as the next digit in the result. 
Result so far: 490594.4
Subtract 612 from 630 to get 18.
Since there are no more digits in the dividend, we add a zero to the remainder making it 180, and continue the process.

Let's proceed to step 10:
If we divide 180 by 153, we get 1 and a remainder of 27.
The number 1 becomes the next digit in our result. 
Result so far: 490594.41
The remainder is 27 after subtracting 153 from 180.
Since there are no more digits in the dividend, we add a zero to the remainder making it 270, and continue the process.

Let's proceed to step 11:
153 goes into 270 1 times with a remainder of 117.
Put 1 as the next digit of the answer. 
Result so far: 490594.411
If we take 153 away from 270, we end up with 117.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1170, and continue the process.

The final result is 490594.411 with a remainder of 0.0117.