We divide 253259 by 77
The aim is to understand the frequency of 77 in 253259.

Let's proceed to step 1:
If we divide 2 by 77, we get 0 and a remainder of 2.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Deduct 0 from 2 and we're left with 2.
Bring next digit (5) of the dividend behind the 2 and repeat the process: 25 / 77

Moving on to step 2:
If we divide 25 by 77, we get 0 and a remainder of 25.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Deduct 0 from 25 and we're left with 25.
Include the next digit (3) from the dividend after 25, then repeat: 253 / 77

Going ahead to step 3:
If we divide 253 by 77, we get 3 and a remainder of 22.
The number 3 becomes the next digit in our result. 
Result so far: 3.0
Subtract 231 from 253 to get 22.
Bring next digit (2) of the dividend behind the 22 and repeat the process: 222 / 77

Moving on to step 4:
77 goes into 222 2 times with a remainder of 68.
The next digit of our result is 2. 
Result so far: 32.0
The remainder is 68 after subtracting 154 from 222.
Bring next digit (5) of the dividend behind the 68 and repeat the process: 685 / 77

Moving on to step 5:
77 goes into 685 8 times with a remainder of 69.
The number 8 becomes the next digit in our result. 
Result so far: 328.0
If we take 616 away from 685, we end up with 69.
Bring next digit (9) of the dividend behind the 69 and repeat the process: 699 / 77

On to step 6:
77 goes into 699 9 times with a remainder of 6.
The number 9 becomes the next digit in our result. 
Result so far: 3289.0
If we take 693 away from 699, we end up with 6.
Since there are no more digits in the dividend, we add a zero to the remainder making it 60, and continue the process.

Advancing to step 7:
60 divided by 77 is 0 with a remainder of 60.
The number 0 becomes the next digit in our result. 
Result so far: 3289.0
If we subtract 0 from 60, we get 60.
Since there are no more digits in the dividend, we add a zero to the remainder making it 600, and continue the process.

On to step 8:
600 divided by 77 is 7 with a remainder of 61.
Record the quotient 7 as the next digit in the result. 
Result so far: 3289.07
Subtracting 539 from 600 leaves us with 61.
Since there are no more digits in the dividend, we add a zero to the remainder making it 610, and continue the process.

On to step 9:
The number 77 fits into 610 7 times, leaving a remainder of 71.
Write down 7 as next digit of the result. 
Result so far: 3289.077
Subtract 539 from 610 to get 71.
Since there are no more digits in the dividend, we add a zero to the remainder making it 710, and continue the process.

The final result is 3289.077 with a remainder of 0.0071.