We look at the division of 68470560 by 257 
The aim is to understand the frequency of 257 in 68470560.

On to step 1:
The number 257 fits into 6 0 times, leaving 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.
Take the next digit (8) from the dividend and append it to 6, then repeat: 68 / 257

Advancing to step 2:
257 goes into 68 0 times with a remainder of 68.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Subtract 0 from 68 to get 68.
Append the next digit (4) from the dividend to 68 and continue with: 684 / 257

On to step 3:
257 goes into 684 2 times with a remainder of 170.
The number 2 becomes the next digit in our result. 
Result so far: 2.0
The remainder is 170 after subtracting 514 from 684.
Append the next digit (7) from the dividend to 170 and continue with: 1707 / 257

Going ahead to step 4:
257 goes into 1707 6 times with a remainder of 165.
Use 6 as the next digit of our solution. 
Result so far: 26.0
If we take 1542 away from 1707, we end up with 165.
Bring next digit (0) of the dividend behind the 165 and repeat the process: 1650 / 257

Going ahead to step 5:
The number 257 fits into 1650 6 times, leaving a remainder of 108.
Use 6 as the next digit of our solution. 
Result so far: 266.0
Deduct 1542 from 1650 and we're left with 108.
Fetch the next digit (5) from the dividend, attach it to 108 and continue: 1085 / 257

Let's proceed to step 6:
If we divide 1085 by 257, we get 4 and a remainder of 57.
The number 4 becomes the next digit in our result. 
Result so far: 2664.0
Subtract 1028 from 1085 to get 57.
Include the next digit (6) from the dividend after 57, then repeat: 576 / 257

Going ahead to step 7:
If we divide 576 by 257, we get 2 and a remainder of 62.
Put 2 as the next digit of the answer. 
Result so far: 26642.0
If we subtract 514 from 576, we get 62.
Take the next digit (0) from the dividend and append it to 62, then repeat: 620 / 257

Advancing to step 8:
The number 257 fits into 620 2 times, leaving a remainder of 106.
Use 2 as the next digit of our solution. 
Result so far: 266422.0
If we subtract 514 from 620, we get 106.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1060, and continue the process.

Going ahead to step 9:
When dividing 1060 by 257, we get 4 with a remainder of 32.
The number 4 becomes the next digit in our result. 
Result so far: 266422.4
Deduct 1028 from 1060 and we're left 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.

Going ahead to step 10:
320 divided by 257 is 1 with a remainder of 63.
The number 1 becomes the next digit in our result. 
Result so far: 266422.41
If we subtract 257 from 320, we get 63.
Since there are no more digits in the dividend, we add a zero to the remainder making it 630, and continue the process.

On to step 11:
630 divided by 257 is 2 with a remainder of 116.
Write down 2 as next digit of the result. 
Result so far: 266422.412
If we take 514 away from 630, we end up with 116.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1160, and continue the process.

Let's proceed to step 12:
The number 257 fits into 1160 4 times, leaving a remainder of 132.
The next digit of our result is 4. 
Result so far: 266422.4124
Deduct 1028 from 1160 and we're left with 132.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1320, and continue the process.

On to step 13:
257 can be fit into 1320 5 times, resulting in a remainder of 35.
The number 5 becomes the next digit in our result. 
Result so far: 266422.41245
If we subtract 1285 from 1320, we get 35.
Since there are no more digits in the dividend, we add a zero to the remainder making it 350, and continue the process.

Moving on to step 14:
The number 257 fits into 350 1 times, leaving a remainder of 93.
Write down 1 as next digit of the result. 
Result so far: 266422.412451
Subtract 257 from 350 to get 93.
Since there are no more digits in the dividend, we add a zero to the remainder making it 930, and continue the process.

Going ahead to step 15:
The number 257 fits into 930 3 times, leaving a remainder of 159.
Write down 3 as next digit of the result. 
Result so far: 266422.4124513
If we subtract 771 from 930, we get 159.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1590, and continue the process.

Let's proceed to step 16:
257 can be fit into 1590 6 times, resulting in a remainder of 48.
Use 6 as the next digit of our solution. 
Result so far: 266422.41245136
The remainder is 48 after subtracting 1542 from 1590.
Since there are no more digits in the dividend, we add a zero to the remainder making it 480, and continue the process.

The quotient of the division is 266422.41245136, and the remainder is 4.8e-08.