81656373 divided by 153 
The aim is to understand the frequency of 153 in 81656373.

On to step 1:
153 goes into 8 0 times with a remainder of 8.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Subtracting 0 from 8 leaves us with 8.
Append the next digit (1) from the dividend to 8 and continue with: 81 / 153

On to step 2:
When dividing 81 by 153, we get 0 with a remainder of 81.
Use 0 as the next digit of our solution. 
Result so far: 0.0
The remainder is 81 after subtracting 0 from 81.
Grab the next digit (6) from the dividend, add it to 81, then carry on: 816 / 153

Step 3:
153 goes into 816 5 times with a remainder of 51.
The next digit of our result is 5. 
Result so far: 5.0
Subtract 765 from 816 to get 51.
Bring next digit (5) of the dividend behind the 51 and repeat the process: 515 / 153

Advancing to step 4:
When dividing 515 by 153, we get 3 with a remainder of 56.
Use 3 as the next digit of our solution. 
Result so far: 53.0
The remainder is 56 after subtracting 459 from 515.
Include the next digit (6) from the dividend after 56, then repeat: 566 / 153

Let's proceed to step 5:
If we divide 566 by 153, we get 3 and a remainder of 107.
The next digit of our result is 3. 
Result so far: 533.0
The remainder is 107 after subtracting 459 from 566.
Include the next digit (3) from the dividend after 107, then repeat: 1073 / 153

Going ahead to step 6:
153 can be fit into 1073 7 times, resulting in a remainder of 2.
The next digit of our result is 7. 
Result so far: 5337.0
If we subtract 1071 from 1073, we get 2.
Append the next digit (7) from the dividend to 2 and continue with: 27 / 153

Step 7:
When dividing 27 by 153, we get 0 with a remainder of 27.
Record the quotient 0 as the next digit in the result. 
Result so far: 53370.0
The remainder is 27 after subtracting 0 from 27.
Append the next digit (3) from the dividend to 27 and continue with: 273 / 153

Going ahead to step 8:
If we divide 273 by 153, we get 1 and a remainder of 120.
Use 1 as the next digit of our solution. 
Result so far: 533701.0
If we take 153 away from 273, we end up with 120.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1200, and continue the process.

Let's proceed to step 9:
1200 divided by 153 is 7 with a remainder of 129.
Write down 7 as next digit of the result. 
Result so far: 533701.7
The remainder is 129 after subtracting 1071 from 1200.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1290, and continue the process.

Moving on to step 10:
1290 divided by 153 is 8 with a remainder of 66.
Write down 8 as next digit of the result. 
Result so far: 533701.78
If we take 1224 away from 1290, we end up with 66.
Since there are no more digits in the dividend, we add a zero to the remainder making it 660, and continue the process.

Step 11:
153 can be fit into 660 4 times, resulting in a remainder of 48.
Write down 4 as next digit of the result. 
Result so far: 533701.784
If we take 612 away from 660, we end up with 48.
Since there are no more digits in the dividend, we add a zero to the remainder making it 480, and continue the process.

Step 12:
153 can be fit into 480 3 times, resulting in a remainder of 21.
Write down 3 as next digit of the result. 
Result so far: 533701.7843
Subtract 459 from 480 to get 21.
Since there are no more digits in the dividend, we add a zero to the remainder making it 210, and continue the process.

Advancing to step 13:
153 can be fit into 210 1 times, resulting in a remainder of 57.
The next digit of our result is 1. 
Result so far: 533701.78431
Subtracting 153 from 210 leaves us with 57.
Since there are no more digits in the dividend, we add a zero to the remainder making it 570, and continue the process.

Step 14:
If we divide 570 by 153, we get 3 and a remainder of 111.
Record the quotient 3 as the next digit in the result. 
Result so far: 533701.784313
Subtract 459 from 570 to get 111.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1110, and continue the process.

Moving on to step 15:
1110 divided by 153 is 7 with a remainder of 39.
Put 7 as the next digit of the answer. 
Result so far: 533701.7843137
If we take 1071 away from 1110, we end up with 39.
Since there are no more digits in the dividend, we add a zero to the remainder making it 390, and continue the process.

Advancing to step 16:
When dividing 390 by 153, we get 2 with a remainder of 84.
The number 2 becomes the next digit in our result. 
Result so far: 533701.78431372
If we take 306 away from 390, we end up with 84.
Since there are no more digits in the dividend, we add a zero to the remainder making it 840, and continue the process.

After the division, we end up with 533701.78431372 and a remainder of 8.4e-08.