We look at the division of 71760911 by 251 
The aim is to understand the frequency of 251 in 71760911.

Step 1:
The number 251 fits into 7 0 times, leaving a remainder of 7.
Write down 0 as next digit of the result. 
Result so far: 0.0
If we take 0 away from 7, we end up with 7.
Grab the next digit (1) from the dividend, add it to 7, then carry on: 71 / 251

Moving on to step 2:
251 can be fit into 71 0 times, resulting in a remainder of 71.
The next digit of our result is 0. 
Result so far: 0.0
Subtract 0 from 71 to get 71.
Include the next digit (7) from the dividend after 71, then repeat: 717 / 251

On to step 3:
251 can be fit into 717 2 times, resulting in a remainder of 215.
Write down 2 as next digit of the result. 
Result so far: 2.0
Subtract 502 from 717 to get 215.
Append the next digit (6) from the dividend to 215 and continue with: 2156 / 251

Going ahead to step 4:
The number 251 fits into 2156 8 times, leaving a remainder of 148.
Record the quotient 8 as the next digit in the result. 
Result so far: 28.0
Subtract 2008 from 2156 to get 148.
Take the next digit (0) from the dividend and append it to 148, then repeat: 1480 / 251

Step 5:
251 can be fit into 1480 5 times, resulting in a remainder of 225.
Put 5 as the next digit of the answer. 
Result so far: 285.0
Subtracting 1255 from 1480 leaves us with 225.
Take the next digit (9) from the dividend and append it to 225, then repeat: 2259 / 251

Moving on to step 6:
251 goes into 2259 9 times with a remainder of 0.
The number 9 becomes the next digit in our result. 
Result so far: 2859.0
The remainder is 0 after subtracting 2259 from 2259.
Append the next digit (1) from the dividend to 0 and continue with: 1 / 251

Going ahead to step 7:
If we divide 1 by 251, we get 0 and a remainder of 1.
The number 0 becomes the next digit in our result. 
Result so far: 28590.0
If we subtract 0 from 1, we get 1.
Bring next digit (1) of the dividend behind the 1 and repeat the process: 11 / 251

Step 8:
If we divide 11 by 251, we get 0 and a remainder of 11.
Write down 0 as next digit of the result. 
Result so far: 285900.0
The remainder is 11 after subtracting 0 from 11.
Since there are no more digits in the dividend, we add a zero to the remainder making it 110, and continue the process.

Step 9:
The number 251 fits into 110 0 times, leaving a remainder of 110.
Write down 0 as next digit of the result. 
Result so far: 285900.0
The remainder is 110 after subtracting 0 from 110.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1100, and continue the process.

On to step 10:
1100 divided by 251 is 4 with a remainder of 96.
The next digit of our result is 4. 
Result so far: 285900.04
Subtracting 1004 from 1100 leaves us with 96.
Since there are no more digits in the dividend, we add a zero to the remainder making it 960, and continue the process.

Advancing to step 11:
960 divided by 251 is 3 with a remainder of 207.
Write down 3 as next digit of the result. 
Result so far: 285900.043
Subtract 753 from 960 to get 207.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2070, and continue the process.

Step 12:
2070 divided by 251 is 8 with a remainder of 62.
Record the quotient 8 as the next digit in the result. 
Result so far: 285900.0438
If we subtract 2008 from 2070, we get 62.
Since there are no more digits in the dividend, we add a zero to the remainder making it 620, and continue the process.

Step 13:
251 goes into 620 2 times with a remainder of 118.
Use 2 as the next digit of our solution. 
Result so far: 285900.04382
Deduct 502 from 620 and we're left with 118.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1180, and continue the process.

Going ahead to step 14:
251 can be fit into 1180 4 times, resulting in a remainder of 176.
The next digit of our result is 4. 
Result so far: 285900.043824
If we subtract 1004 from 1180, we get 176.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1760, and continue the process.

Let's proceed to step 15:
251 can be fit into 1760 7 times, resulting in a remainder of 3.
Record the quotient 7 as the next digit in the result. 
Result so far: 285900.0438247
The remainder is 3 after subtracting 1757 from 1760.
Since there are no more digits in the dividend, we add a zero to the remainder making it 30, and continue the process.

Moving on to step 16:
251 goes into 30 0 times with a remainder of 30.
Record the quotient 0 as the next digit in the result. 
Result so far: 285900.0438247
If we subtract 0 from 30, we get 30.
Since there are no more digits in the dividend, we add a zero to the remainder making it 300, and continue the process.

Our division results in 285900.0438247 with a remaining 3e-08.