349668 ÷ 53 
The aim is to understand the frequency of 53 in 349668.

Step 1:
When dividing 3 by 53, we get 0 with a remainder of 3.
Write down 0 as next digit of the result. 
Result so far: 0.0
The remainder is 3 after subtracting 0 from 3.
Fetch the next digit (4) from the dividend, attach it to 3 and continue: 34 / 53

Step 2:
If we divide 34 by 53, we get 0 and a remainder of 34.
Write down 0 as next digit of the result. 
Result so far: 0.0
If we subtract 0 from 34, we get 34.
Bring next digit (9) of the dividend behind the 34 and repeat the process: 349 / 53

On to step 3:
53 goes into 349 6 times with a remainder of 31.
Record the quotient 6 as the next digit in the result. 
Result so far: 6.0
The remainder is 31 after subtracting 318 from 349.
Append the next digit (6) from the dividend to 31 and continue with: 316 / 53

On to step 4:
The number 53 fits into 316 5 times, leaving a remainder of 51.
Record the quotient 5 as the next digit in the result. 
Result so far: 65.0
The remainder is 51 after subtracting 265 from 316.
Include the next digit (6) from the dividend after 51, then repeat: 516 / 53

Step 5:
The number 53 fits into 516 9 times, leaving a remainder of 39.
Put 9 as the next digit of the answer. 
Result so far: 659.0
If we take 477 away from 516, we end up with 39.
Include the next digit (8) from the dividend after 39, then repeat: 398 / 53

On to step 6:
When dividing 398 by 53, we get 7 with a remainder of 27.
Record the quotient 7 as the next digit in the result. 
Result so far: 6597.0
If we take 371 away from 398, we end up with 27.
Since there are no more digits in the dividend, we add a zero to the remainder making it 270, and continue the process.

On to step 7:
The number 53 fits into 270 5 times, leaving a remainder of 5.
Put 5 as the next digit of the answer. 
Result so far: 6597.5
Subtract 265 from 270 to get 5.
Since there are no more digits in the dividend, we add a zero to the remainder making it 50, and continue the process.

Let's proceed to step 8:
When dividing 50 by 53, we get 0 with a remainder of 50.
Use 0 as the next digit of our solution. 
Result so far: 6597.5
Subtract 0 from 50 to get 50.
Since there are no more digits in the dividend, we add a zero to the remainder making it 500, and continue the process.

Let's proceed to step 9:
500 divided by 53 is 9 with a remainder of 23.
The next digit of our result is 9. 
Result so far: 6597.509
Subtract 477 from 500 to get 23.
Since there are no more digits in the dividend, we add a zero to the remainder making it 230, and continue the process.

Step 10:
53 goes into 230 4 times with a remainder of 18.
Write down 4 as next digit of the result. 
Result so far: 6597.5094
Subtract 212 from 230 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.

Moving on to step 11:
If we divide 180 by 53, we get 3 and a remainder of 21.
Use 3 as the next digit of our solution. 
Result so far: 6597.50943
The remainder is 21 after subtracting 159 from 180.
Since there are no more digits in the dividend, we add a zero to the remainder making it 210, and continue the process.

Going ahead to step 12:
If we divide 210 by 53, we get 3 and a remainder of 51.
Write down 3 as next digit of the result. 
Result so far: 6597.509433
Subtract 159 from 210 to get 51.
Since there are no more digits in the dividend, we add a zero to the remainder making it 510, and continue the process.

The final outcome is 6597.509433, with a leftover of 5.1e-06.