50251211 divided by 424 
The aim is to understand the frequency of 424 in 50251211.

Let's proceed to step 1:
The number 424 fits into 5 0 times, leaving a remainder of 5.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
The remainder is 5 after subtracting 0 from 5.
Grab the next digit (0) from the dividend, add it to 5, then carry on: 50 / 424

Moving on to step 2:
424 goes into 50 0 times with a remainder of 50.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Subtracting 0 from 50 leaves us with 50.
Include the next digit (2) from the dividend after 50, then repeat: 502 / 424

Moving on to step 3:
When dividing 502 by 424, we get 1 with a remainder of 78.
The next digit of our result is 1. 
Result so far: 1.0
Subtracting 424 from 502 leaves us with 78.
Grab the next digit (5) from the dividend, add it to 78, then carry on: 785 / 424

Going ahead to step 4:
The number 424 fits into 785 1 times, leaving a remainder of 361.
The next digit of our result is 1. 
Result so far: 11.0
If we take 424 away from 785, we end up with 361.
Fetch the next digit (1) from the dividend, attach it to 361 and continue: 3611 / 424

On to step 5:
3611 divided by 424 is 8 with a remainder of 219.
The next digit of our result is 8. 
Result so far: 118.0
Subtract 3392 from 3611 to get 219.
Take the next digit (2) from the dividend and append it to 219, then repeat: 2192 / 424

Step 6:
424 can be fit into 2192 5 times, resulting in a remainder of 72.
Record the quotient 5 as the next digit in the result. 
Result so far: 1185.0
Deduct 2120 from 2192 and we're left with 72.
Grab the next digit (1) from the dividend, add it to 72, then carry on: 721 / 424

Moving on to step 7:
424 can be fit into 721 1 times, resulting in a remainder of 297.
Put 1 as the next digit of the answer. 
Result so far: 11851.0
The remainder is 297 after subtracting 424 from 721.
Include the next digit (1) from the dividend after 297, then repeat: 2971 / 424

On to step 8:
424 can be fit into 2971 7 times, resulting in a remainder of 3.
Use 7 as the next digit of our solution. 
Result so far: 118517.0
Subtract 2968 from 2971 to get 3.
Since there are no more digits in the dividend, we add a zero to the remainder making it 30, and continue the process.

Step 9:
If we divide 30 by 424, we get 0 and a remainder of 30.
The next digit of our result is 0. 
Result so far: 118517.0
If we take 0 away from 30, we end up with 30.
Since there are no more digits in the dividend, we add a zero to the remainder making it 300, and continue the process.

Step 10:
424 goes into 300 0 times with a remainder of 300.
The next digit of our result is 0. 
Result so far: 118517.0
Subtract 0 from 300 to get 300.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3000, and continue the process.

Our division results in 118517.0 with a remaining 0.3.