We look at the division of 50487119 by 412 
The aim is to understand the frequency of 412 in 50487119.

Going ahead to step 1:
The number 412 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.
Include the next digit (0) from the dividend after 5, then repeat: 50 / 412

Let's proceed to step 2:
412 can be fit into 50 0 times, resulting in a remainder of 50.
The next digit of our result is 0. 
Result so far: 0.0
Subtract 0 from 50 to get 50.
Bring next digit (4) of the dividend behind the 50 and repeat the process: 504 / 412

Moving on to step 3:
412 can be fit into 504 1 times, resulting in a remainder of 92.
Record the quotient 1 as the next digit in the result. 
Result so far: 1.0
Subtract 412 from 504 to get 92.
Bring next digit (8) of the dividend behind the 92 and repeat the process: 928 / 412

Let's proceed to step 4:
When dividing 928 by 412, we get 2 with a remainder of 104.
The number 2 becomes the next digit in our result. 
Result so far: 12.0
If we take 824 away from 928, we end up with 104.
Grab the next digit (7) from the dividend, add it to 104, then carry on: 1047 / 412

Let's proceed to step 5:
412 can be fit into 1047 2 times, resulting in a remainder of 223.
The next digit of our result is 2. 
Result so far: 122.0
If we subtract 824 from 1047, we get 223.
Include the next digit (1) from the dividend after 223, then repeat: 2231 / 412

Let's proceed to step 6:
The number 412 fits into 2231 5 times, leaving a remainder of 171.
Use 5 as the next digit of our solution. 
Result so far: 1225.0
Subtracting 2060 from 2231 leaves us with 171.
Bring next digit (1) of the dividend behind the 171 and repeat the process: 1711 / 412

Going ahead to step 7:
412 goes into 1711 4 times with a remainder of 63.
The next digit of our result is 4. 
Result so far: 12254.0
Deduct 1648 from 1711 and we're left with 63.
Include the next digit (9) from the dividend after 63, then repeat: 639 / 412

Step 8:
639 divided by 412 is 1 with a remainder of 227.
Put 1 as the next digit of the answer. 
Result so far: 122541.0
If we subtract 412 from 639, we get 227.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2270, and continue the process.

Going ahead to step 9:
2270 divided by 412 is 5 with a remainder of 210.
Use 5 as the next digit of our solution. 
Result so far: 122541.5
Subtract 2060 from 2270 to get 210.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2100, and continue the process.

Step 10:
If we divide 2100 by 412, we get 5 and a remainder of 40.
Write down 5 as next digit of the result. 
Result so far: 122541.55
The remainder is 40 after subtracting 2060 from 2100.
Since there are no more digits in the dividend, we add a zero to the remainder making it 400, and continue the process.

The final outcome is 122541.55, with a leftover of 0.04.