80535508 ÷ 257 
The aim is to understand the frequency of 257 in 80535508.

On to step 1:
If we divide 8 by 257, we get 0 and a remainder of 8.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Subtract 0 from 8 to get 8.
Fetch the next digit (0) from the dividend, attach it to 8 and continue: 80 / 257

Moving on to step 2:
80 divided by 257 is 0 with a remainder of 80.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
If we subtract 0 from 80, we get 80.
Fetch the next digit (5) from the dividend, attach it to 80 and continue: 805 / 257

Let's proceed to step 3:
If we divide 805 by 257, we get 3 and a remainder of 34.
Use 3 as the next digit of our solution. 
Result so far: 3.0
The remainder is 34 after subtracting 771 from 805.
Include the next digit (3) from the dividend after 34, then repeat: 343 / 257

On to step 4:
257 goes into 343 1 times with a remainder of 86.
The number 1 becomes the next digit in our result. 
Result so far: 31.0
If we take 257 away from 343, we end up with 86.
Append the next digit (5) from the dividend to 86 and continue with: 865 / 257

Advancing to step 5:
257 can be fit into 865 3 times, resulting in a remainder of 94.
Use 3 as the next digit of our solution. 
Result so far: 313.0
Subtract 771 from 865 to get 94.
Fetch the next digit (5) from the dividend, attach it to 94 and continue: 945 / 257

Let's proceed to step 6:
945 divided by 257 is 3 with a remainder of 174.
Record the quotient 3 as the next digit in the result. 
Result so far: 3133.0
Deduct 771 from 945 and we're left with 174.
Bring next digit (0) of the dividend behind the 174 and repeat the process: 1740 / 257

Advancing to step 7:
The number 257 fits into 1740 6 times, leaving a remainder of 198.
Write down 6 as next digit of the result. 
Result so far: 31336.0
If we subtract 1542 from 1740, we get 198.
Fetch the next digit (8) from the dividend, attach it to 198 and continue: 1988 / 257

Going ahead to step 8:
257 can be fit into 1988 7 times, resulting in a remainder of 189.
The number 7 becomes the next digit in our result. 
Result so far: 313367.0
If we subtract 1799 from 1988, we get 189.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1890, and continue the process.

On to step 9:
When dividing 1890 by 257, we get 7 with a remainder of 91.
The next digit of our result is 7. 
Result so far: 313367.7
If we subtract 1799 from 1890, we get 91.
Since there are no more digits in the dividend, we add a zero to the remainder making it 910, and continue the process.

Advancing to step 10:
257 goes into 910 3 times with a remainder of 139.
Record the quotient 3 as the next digit in the result. 
Result so far: 313367.73
Subtracting 771 from 910 leaves us with 139.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1390, and continue the process.

On to step 11:
When dividing 1390 by 257, we get 5 with a remainder of 105.
Put 5 as the next digit of the answer. 
Result so far: 313367.735
The remainder is 105 after subtracting 1285 from 1390.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1050, and continue the process.

Let's proceed to step 12:
The number 257 fits into 1050 4 times, leaving a remainder of 22.
The next digit of our result is 4. 
Result so far: 313367.7354
Subtract 1028 from 1050 to get 22.
Since there are no more digits in the dividend, we add a zero to the remainder making it 220, and continue the process.

Going ahead to step 13:
When dividing 220 by 257, we get 0 with a remainder of 220.
Write down 0 as next digit of the result. 
Result so far: 313367.7354
Subtracting 0 from 220 leaves us with 220.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2200, and continue the process.

On to step 14:
257 goes into 2200 8 times with a remainder of 144.
The number 8 becomes the next digit in our result. 
Result so far: 313367.735408
If we take 2056 away from 2200, we end up with 144.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1440, and continue the process.

On to step 15:
257 goes into 1440 5 times with a remainder of 155.
Record the quotient 5 as the next digit in the result. 
Result so far: 313367.7354085
Subtract 1285 from 1440 to get 155.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1550, and continue the process.

Let's proceed to step 16:
When dividing 1550 by 257, we get 6 with a remainder of 8.
Write down 6 as next digit of the result. 
Result so far: 313367.73540856
Subtracting 1542 from 1550 leaves us with 8.
Since there are no more digits in the dividend, we add a zero to the remainder making it 80, and continue the process.

The final outcome is 313367.73540856, with a leftover of 8e-09.