53173959 ÷ 247 
The aim is to understand the frequency of 247 in 53173959.

Let's proceed to step 1:
5 divided by 247 is 0 with a remainder of 5.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Deduct 0 from 5 and we're left with 5.
Fetch the next digit (3) from the dividend, attach it to 5 and continue: 53 / 247

Moving on to step 2:
If we divide 53 by 247, we get 0 and a remainder of 53.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
The remainder is 53 after subtracting 0 from 53.
Include the next digit (1) from the dividend after 53, then repeat: 531 / 247

On to step 3:
531 divided by 247 is 2 with a remainder of 37.
The next digit of our result is 2. 
Result so far: 2.0
If we take 494 away from 531, we end up with 37.
Take the next digit (7) from the dividend and append it to 37, then repeat: 377 / 247

Step 4:
The number 247 fits into 377 1 times, leaving a remainder of 130.
Record the quotient 1 as the next digit in the result. 
Result so far: 21.0
Subtracting 247 from 377 leaves us with 130.
Bring next digit (3) of the dividend behind the 130 and repeat the process: 1303 / 247

Advancing to step 5:
When dividing 1303 by 247, we get 5 with a remainder of 68.
The next digit of our result is 5. 
Result so far: 215.0
Subtract 1235 from 1303 to get 68.
Append the next digit (9) from the dividend to 68 and continue with: 689 / 247

Advancing to step 6:
If we divide 689 by 247, we get 2 and a remainder of 195.
Put 2 as the next digit of the answer. 
Result so far: 2152.0
Deduct 494 from 689 and we're left with 195.
Fetch the next digit (5) from the dividend, attach it to 195 and continue: 1955 / 247

On to step 7:
When dividing 1955 by 247, we get 7 with a remainder of 226.
The number 7 becomes the next digit in our result. 
Result so far: 21527.0
The remainder is 226 after subtracting 1729 from 1955.
Bring next digit (9) of the dividend behind the 226 and repeat the process: 2269 / 247

On to step 8:
2269 divided by 247 is 9 with a remainder of 46.
Write down 9 as next digit of the result. 
Result so far: 215279.0
The remainder is 46 after subtracting 2223 from 2269.
Since there are no more digits in the dividend, we add a zero to the remainder making it 460, and continue the process.

Moving on to step 9:
247 can be fit into 460 1 times, resulting in a remainder of 213.
Use 1 as the next digit of our solution. 
Result so far: 215279.1
The remainder is 213 after subtracting 247 from 460.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2130, and continue the process.

Moving on to step 10:
If we divide 2130 by 247, we get 8 and a remainder of 154.
The number 8 becomes the next digit in our result. 
Result so far: 215279.18
The remainder is 154 after subtracting 1976 from 2130.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1540, and continue the process.

Step 11:
247 can be fit into 1540 6 times, resulting in a remainder of 58.
The number 6 becomes the next digit in our result. 
Result so far: 215279.186
If we subtract 1482 from 1540, we get 58.
Since there are no more digits in the dividend, we add a zero to the remainder making it 580, and continue the process.

Step 12:
The number 247 fits into 580 2 times, leaving a remainder of 86.
Record the quotient 2 as the next digit in the result. 
Result so far: 215279.1862
Deduct 494 from 580 and we're left with 86.
Since there are no more digits in the dividend, we add a zero to the remainder making it 860, and continue the process.

On to step 13:
247 goes into 860 3 times with a remainder of 119.
Write down 3 as next digit of the result. 
Result so far: 215279.18623
Subtracting 741 from 860 leaves us with 119.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1190, and continue the process.

Going ahead to step 14:
When dividing 1190 by 247, we get 4 with a remainder of 202.
Use 4 as the next digit of our solution. 
Result so far: 215279.186234
Subtract 988 from 1190 to get 202.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2020, and continue the process.

On to step 15:
247 can be fit into 2020 8 times, resulting in a remainder of 44.
The number 8 becomes the next digit in our result. 
Result so far: 215279.1862348
If we subtract 1976 from 2020, we get 44.
Since there are no more digits in the dividend, we add a zero to the remainder making it 440, and continue the process.

Going ahead to step 16:
The number 247 fits into 440 1 times, leaving a remainder of 193.
Record the quotient 1 as the next digit in the result. 
Result so far: 215279.18623481
Deduct 247 from 440 and we're left with 193.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1930, and continue the process.

The final outcome is 215279.18623481, with a leftover of 1.93e-07.