We're dividing 50426963 by 251 
The aim is to understand the frequency of 251 in 50426963.

Step 1:
When dividing 5 by 251, we get 0 with a remainder of 5.
Write down 0 as next digit of the result. 
Result so far: 0.0
If we subtract 0 from 5, we get 5.
Include the next digit (0) from the dividend after 5, then repeat: 50 / 251

Going ahead to step 2:
When dividing 50 by 251, we get 0 with a remainder of 50.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Subtract 0 from 50 to get 50.
Append the next digit (4) from the dividend to 50 and continue with: 504 / 251

Step 3:
When dividing 504 by 251, we get 2 with a remainder of 2.
Record the quotient 2 as the next digit in the result. 
Result so far: 2.0
Subtracting 502 from 504 leaves us with 2.
Include the next digit (2) from the dividend after 2, then repeat: 22 / 251

Going ahead to step 4:
The number 251 fits into 22 0 times, leaving a remainder of 22.
The number 0 becomes the next digit in our result. 
Result so far: 20.0
Deduct 0 from 22 and we're left with 22.
Fetch the next digit (6) from the dividend, attach it to 22 and continue: 226 / 251

On to step 5:
226 divided by 251 is 0 with a remainder of 226.
Write down 0 as next digit of the result. 
Result so far: 200.0
The remainder is 226 after subtracting 0 from 226.
Fetch the next digit (9) from the dividend, attach it to 226 and continue: 2269 / 251

Moving on to step 6:
If we divide 2269 by 251, we get 9 and a remainder of 10.
Record the quotient 9 as the next digit in the result. 
Result so far: 2009.0
If we subtract 2259 from 2269, we get 10.
Take the next digit (6) from the dividend and append it to 10, then repeat: 106 / 251

Advancing to step 7:
251 can be fit into 106 0 times, resulting in a remainder of 106.
The next digit of our result is 0. 
Result so far: 20090.0
If we subtract 0 from 106, we get 106.
Include the next digit (3) from the dividend after 106, then repeat: 1063 / 251

Going ahead to step 8:
251 goes into 1063 4 times with a remainder of 59.
The next digit of our result is 4. 
Result so far: 200904.0
Subtracting 1004 from 1063 leaves us with 59.
Since there are no more digits in the dividend, we add a zero to the remainder making it 590, and continue the process.

Advancing to step 9:
251 goes into 590 2 times with a remainder of 88.
The next digit of our result is 2. 
Result so far: 200904.2
If we take 502 away from 590, we end up with 88.
Since there are no more digits in the dividend, we add a zero to the remainder making it 880, and continue the process.

Going ahead to step 10:
251 goes into 880 3 times with a remainder of 127.
Put 3 as the next digit of the answer. 
Result so far: 200904.23
If we take 753 away from 880, we end up with 127.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1270, and continue the process.

On to step 11:
The number 251 fits into 1270 5 times, leaving a remainder of 15.
Put 5 as the next digit of the answer. 
Result so far: 200904.235
The remainder is 15 after subtracting 1255 from 1270.
Since there are no more digits in the dividend, we add a zero to the remainder making it 150, and continue the process.

Let's proceed to step 12:
When dividing 150 by 251, we get 0 with a remainder of 150.
Put 0 as the next digit of the answer. 
Result so far: 200904.235
If we subtract 0 from 150, we get 150.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1500, and continue the process.

Step 13:
The number 251 fits into 1500 5 times, leaving a remainder of 245.
Put 5 as the next digit of the answer. 
Result so far: 200904.23505
If we take 1255 away from 1500, we end up with 245.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2450, and continue the process.

Advancing to step 14:
251 can be fit into 2450 9 times, resulting in a remainder of 191.
Put 9 as the next digit of the answer. 
Result so far: 200904.235059
The remainder is 191 after subtracting 2259 from 2450.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1910, and continue the process.

On to step 15:
251 goes into 1910 7 times with a remainder of 153.
Write down 7 as next digit of the result. 
Result so far: 200904.2350597
If we take 1757 away from 1910, we end up with 153.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1530, and continue the process.

On to step 16:
The number 251 fits into 1530 6 times, leaving a remainder of 24.
Record the quotient 6 as the next digit in the result. 
Result so far: 200904.23505976
Subtract 1506 from 1530 to get 24.
Since there are no more digits in the dividend, we add a zero to the remainder making it 240, and continue the process.

The final outcome is 200904.23505976, with a leftover of 2.4e-08.