We're dividing 291663 by 53 
The aim is to understand the frequency of 53 in 291663.

Step 1:
If we divide 2 by 53, we get 0 and a remainder of 2.
Write down 0 as next digit of the result. 
Result so far: 0.0
Subtracting 0 from 2 leaves us with 2.
Take the next digit (9) from the dividend and append it to 2, then repeat: 29 / 53

Advancing to step 2:
If we divide 29 by 53, we get 0 and a remainder of 29.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Subtract 0 from 29 to get 29.
Bring next digit (1) of the dividend behind the 29 and repeat the process: 291 / 53

Moving on to step 3:
The number 53 fits into 291 5 times, leaving a remainder of 26.
Write down 5 as next digit of the result. 
Result so far: 5.0
Subtract 265 from 291 to get 26.
Take the next digit (6) from the dividend and append it to 26, then repeat: 266 / 53

Going ahead to step 4:
If we divide 266 by 53, we get 5 and a remainder of 1.
Record the quotient 5 as the next digit in the result. 
Result so far: 55.0
Subtract 265 from 266 to get 1.
Include the next digit (6) from the dividend after 1, then repeat: 16 / 53

Going ahead to step 5:
53 goes into 16 0 times with a remainder of 16.
Record the quotient 0 as the next digit in the result. 
Result so far: 550.0
If we subtract 0 from 16, we get 16.
Fetch the next digit (3) from the dividend, attach it to 16 and continue: 163 / 53

Let's proceed to step 6:
When dividing 163 by 53, we get 3 with a remainder of 4.
Put 3 as the next digit of the answer. 
Result so far: 5503.0
Deduct 159 from 163 and we're left with 4.
Since there are no more digits in the dividend, we add a zero to the remainder making it 40, and continue the process.

On to step 7:
When dividing 40 by 53, we get 0 with a remainder of 40.
Put 0 as the next digit of the answer. 
Result so far: 5503.0
Subtracting 0 from 40 leaves us with 40.
Since there are no more digits in the dividend, we add a zero to the remainder making it 400, and continue the process.

Step 8:
When dividing 400 by 53, we get 7 with a remainder of 29.
Write down 7 as next digit of the result. 
Result so far: 5503.07
Subtracting 371 from 400 leaves us with 29.
Since there are no more digits in the dividend, we add a zero to the remainder making it 290, and continue the process.

Let's proceed to step 9:
53 goes into 290 5 times with a remainder of 25.
Use 5 as the next digit of our solution. 
Result so far: 5503.075
Deduct 265 from 290 and we're left with 25.
Since there are no more digits in the dividend, we add a zero to the remainder making it 250, and continue the process.

Step 10:
53 can be fit into 250 4 times, resulting in a remainder of 38.
Record the quotient 4 as the next digit in the result. 
Result so far: 5503.0754
Subtract 212 from 250 to get 38.
Since there are no more digits in the dividend, we add a zero to the remainder making it 380, and continue the process.

Advancing to step 11:
If we divide 380 by 53, we get 7 and a remainder of 9.
The next digit of our result is 7. 
Result so far: 5503.07547
Subtracting 371 from 380 leaves us with 9.
Since there are no more digits in the dividend, we add a zero to the remainder making it 90, and continue the process.

Moving on to step 12:
When dividing 90 by 53, we get 1 with a remainder of 37.
Use 1 as the next digit of our solution. 
Result so far: 5503.075471
Subtract 53 from 90 to get 37.
Since there are no more digits in the dividend, we add a zero to the remainder making it 370, and continue the process.

Advancing to step 13:
53 can be fit into 370 6 times, resulting in a remainder of 52.
Put 6 as the next digit of the answer. 
Result so far: 5503.0754716
If we subtract 318 from 370, we get 52.
Since there are no more digits in the dividend, we add a zero to the remainder making it 520, and continue the process.

Step 14:
The number 53 fits into 520 9 times, leaving a remainder of 43.
The number 9 becomes the next digit in our result. 
Result so far: 5503.07547169
Deduct 477 from 520 and we're left 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.

The final outcome is 5503.07547169, with a leftover of 4.3e-08.