We look at the division of 667236 by 53 
The aim is to understand the frequency of 53 in 667236.

Let's proceed to step 1:
53 goes into 6 0 times with a remainder of 6.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Deduct 0 from 6 and we're left with 6.
Bring next digit (6) of the dividend behind the 6 and repeat the process: 66 / 53

Advancing to step 2:
53 can be fit into 66 1 times, resulting in a remainder of 13.
Record the quotient 1 as the next digit in the result. 
Result so far: 1.0
Subtract 53 from 66 to get 13.
Take the next digit (7) from the dividend and append it to 13, then repeat: 137 / 53

On to step 3:
If we divide 137 by 53, we get 2 and a remainder of 31.
The number 2 becomes the next digit in our result. 
Result so far: 12.0
The remainder is 31 after subtracting 106 from 137.
Include the next digit (2) from the dividend after 31, then repeat: 312 / 53

Let's proceed to step 4:
53 can be fit into 312 5 times, resulting in a remainder of 47.
Record the quotient 5 as the next digit in the result. 
Result so far: 125.0
If we take 265 away from 312, we end up with 47.
Grab the next digit (3) from the dividend, add it to 47, then carry on: 473 / 53

Advancing to step 5:
If we divide 473 by 53, we get 8 and a remainder of 49.
Use 8 as the next digit of our solution. 
Result so far: 1258.0
If we subtract 424 from 473, we get 49.
Include the next digit (6) from the dividend after 49, then repeat: 496 / 53

Going ahead to step 6:
53 goes into 496 9 times with a remainder of 19.
Put 9 as the next digit of the answer. 
Result so far: 12589.0
Subtract 477 from 496 to get 19.
Since there are no more digits in the dividend, we add a zero to the remainder making it 190, and continue the process.

Going ahead to step 7:
190 divided by 53 is 3 with a remainder of 31.
Write down 3 as next digit of the result. 
Result so far: 12589.3
Deduct 159 from 190 and we're left with 31.
Since there are no more digits in the dividend, we add a zero to the remainder making it 310, and continue the process.

Advancing to step 8:
53 can be fit into 310 5 times, resulting in a remainder of 45.
Use 5 as the next digit of our solution. 
Result so far: 12589.35
Deduct 265 from 310 and we're left with 45.
Since there are no more digits in the dividend, we add a zero to the remainder making it 450, and continue the process.

Step 9:
53 can be fit into 450 8 times, resulting in a remainder of 26.
Write down 8 as next digit of the result. 
Result so far: 12589.358
Subtract 424 from 450 to get 26.
Since there are no more digits in the dividend, we add a zero to the remainder making it 260, and continue the process.

Let's proceed to step 10:
53 can be fit into 260 4 times, resulting in a remainder of 48.
The number 4 becomes the next digit in our result. 
Result so far: 12589.3584
The remainder is 48 after subtracting 212 from 260.
Since there are no more digits in the dividend, we add a zero to the remainder making it 480, and continue the process.

Advancing to step 11:
480 divided by 53 is 9 with a remainder of 3.
Put 9 as the next digit of the answer. 
Result so far: 12589.35849
Subtracting 477 from 480 leaves us with 3.
Since there are no more digits in the dividend, we add a zero to the remainder making it 30, and continue the process.

Moving on to step 12:
53 goes into 30 0 times with a remainder of 30.
The next digit of our result is 0. 
Result so far: 12589.35849
If we subtract 0 from 30, we get 30.
Since there are no more digits in the dividend, we add a zero to the remainder making it 300, and continue the process.

Going ahead to step 13:
The number 53 fits into 300 5 times, leaving a remainder of 35.
Use 5 as the next digit of our solution. 
Result so far: 12589.3584905
Deduct 265 from 300 and we're left 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.

On to step 14:
53 can be fit into 350 6 times, resulting in a remainder of 32.
Put 6 as the next digit of the answer. 
Result so far: 12589.35849056
Subtracting 318 from 350 leaves us with 32.
Since there are no more digits in the dividend, we add a zero to the remainder making it 320, and continue the process.

Our division results in 12589.35849056 with a remaining 3.2e-08.