We're dividing 51543205 by 153 
The aim is to understand the frequency of 153 in 51543205.

Going ahead to step 1:
The number 153 fits into 5 0 times, leaving a remainder of 5.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Deduct 0 from 5 and we're left with 5.
Append the next digit (1) from the dividend to 5 and continue with: 51 / 153

Going ahead to step 2:
51 divided by 153 is 0 with a remainder of 51.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Deduct 0 from 51 and we're left with 51.
Append the next digit (5) from the dividend to 51 and continue with: 515 / 153

On to step 3:
If we divide 515 by 153, we get 3 and a remainder of 56.
The next digit of our result is 3. 
Result so far: 3.0
The remainder is 56 after subtracting 459 from 515.
Grab the next digit (4) from the dividend, add it to 56, then carry on: 564 / 153

Step 4:
The number 153 fits into 564 3 times, leaving a remainder of 105.
Write down 3 as next digit of the result. 
Result so far: 33.0
Deduct 459 from 564 and we're left with 105.
Take the next digit (3) from the dividend and append it to 105, then repeat: 1053 / 153

On to step 5:
When dividing 1053 by 153, we get 6 with a remainder of 135.
The number 6 becomes the next digit in our result. 
Result so far: 336.0
If we take 918 away from 1053, we end up with 135.
Include the next digit (2) from the dividend after 135, then repeat: 1352 / 153

Advancing to step 6:
1352 divided by 153 is 8 with a remainder of 128.
The next digit of our result is 8. 
Result so far: 3368.0
If we take 1224 away from 1352, we end up with 128.
Include the next digit (0) from the dividend after 128, then repeat: 1280 / 153

Advancing to step 7:
153 can be fit into 1280 8 times, resulting in a remainder of 56.
Write down 8 as next digit of the result. 
Result so far: 33688.0
The remainder is 56 after subtracting 1224 from 1280.
Fetch the next digit (5) from the dividend, attach it to 56 and continue: 565 / 153

Going ahead to step 8:
The number 153 fits into 565 3 times, leaving a remainder of 106.
Put 3 as the next digit of the answer. 
Result so far: 336883.0
Subtracting 459 from 565 leaves us with 106.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1060, and continue the process.

Let's proceed to step 9:
The number 153 fits into 1060 6 times, leaving a remainder of 142.
Put 6 as the next digit of the answer. 
Result so far: 336883.6
If we subtract 918 from 1060, we get 142.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1420, and continue the process.

Let's proceed to step 10:
The number 153 fits into 1420 9 times, leaving a remainder of 43.
The number 9 becomes the next digit in our result. 
Result so far: 336883.69
Subtracting 1377 from 1420 leaves us with 43.
Since there are no more digits in the dividend, we add a zero to the remainder making it 430, and continue the process.

Going ahead to step 11:
When dividing 430 by 153, we get 2 with a remainder of 124.
Put 2 as the next digit of the answer. 
Result so far: 336883.692
Subtract 306 from 430 to get 124.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1240, and continue the process.

Step 12:
153 goes into 1240 8 times with a remainder of 16.
Record the quotient 8 as the next digit in the result. 
Result so far: 336883.6928
The remainder is 16 after subtracting 1224 from 1240.
Since there are no more digits in the dividend, we add a zero to the remainder making it 160, and continue the process.

Moving on to step 13:
160 divided by 153 is 1 with a remainder of 7.
Use 1 as the next digit of our solution. 
Result so far: 336883.69281
If we take 153 away from 160, we end up with 7.
Since there are no more digits in the dividend, we add a zero to the remainder making it 70, and continue the process.

Let's proceed to step 14:
70 divided by 153 is 0 with a remainder of 70.
The number 0 becomes the next digit in our result. 
Result so far: 336883.69281
The remainder is 70 after subtracting 0 from 70.
Since there are no more digits in the dividend, we add a zero to the remainder making it 700, and continue the process.

Going ahead to step 15:
If we divide 700 by 153, we get 4 and a remainder of 88.
Use 4 as the next digit of our solution. 
Result so far: 336883.6928104
Subtracting 612 from 700 leaves us with 88.
Since there are no more digits in the dividend, we add a zero to the remainder making it 880, and continue the process.

Let's proceed to step 16:
153 can be fit into 880 5 times, resulting in a remainder of 115.
The number 5 becomes the next digit in our result. 
Result so far: 336883.69281045
If we subtract 765 from 880, we get 115.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1150, and continue the process.

The final result is 336883.69281045 with a remainder of 1.15e-07.