999139 ÷ 50 
The aim is to understand the frequency of 50 in 999139.

Going ahead to step 1:
The number 50 fits into 9 0 times, leaving a remainder of 9.
The next digit of our result is 0. 
Result so far: 0.0
Subtract 0 from 9 to get 9.
Take the next digit (9) from the dividend and append it to 9, then repeat: 99 / 50

Let's proceed to step 2:
If we divide 99 by 50, we get 1 and a remainder of 49.
Use 1 as the next digit of our solution. 
Result so far: 1.0
The remainder is 49 after subtracting 50 from 99.
Fetch the next digit (9) from the dividend, attach it to 49 and continue: 499 / 50

Let's proceed to step 3:
50 can be fit into 499 9 times, resulting in a remainder of 49.
Use 9 as the next digit of our solution. 
Result so far: 19.0
Deduct 450 from 499 and we're left with 49.
Grab the next digit (1) from the dividend, add it to 49, then carry on: 491 / 50

Let's proceed to step 4:
The number 50 fits into 491 9 times, leaving a remainder of 41.
The next digit of our result is 9. 
Result so far: 199.0
If we take 450 away from 491, we end up with 41.
Append the next digit (3) from the dividend to 41 and continue with: 413 / 50

Advancing to step 5:
When dividing 413 by 50, we get 8 with a remainder of 13.
Use 8 as the next digit of our solution. 
Result so far: 1998.0
Subtracting 400 from 413 leaves us with 13.
Fetch the next digit (9) from the dividend, attach it to 13 and continue: 139 / 50

Step 6:
50 can be fit into 139 2 times, resulting in a remainder of 39.
Record the quotient 2 as the next digit in the result. 
Result so far: 19982.0
Deduct 100 from 139 and we're left with 39.
Since there are no more digits in the dividend, we add a zero to the remainder making it 390, and continue the process.

Let's proceed to step 7:
The number 50 fits into 390 7 times, leaving a remainder of 40.
Write down 7 as next digit of the result. 
Result so far: 19982.7
Subtracting 350 from 390 leaves us with 40.
Since there are no more digits in the dividend, we add a zero to the remainder making it 400, and continue the process.

Advancing to step 8:
50 can be fit into 400 8 times, resulting in a remainder of 0.
Write down 8 as next digit of the result. 
Result so far: 19982.78
Deduct 400 from 400 and we're left with 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

Moving on to step 9:
0 divided by 50 is 0 with a remainder of 0.
Put 0 as the next digit of the answer. 
Result so far: 19982.78
Subtract 0 from 0 to get 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

Advancing to step 10:
0 divided by 50 is 0 with a remainder of 0.
Put 0 as the next digit of the answer. 
Result so far: 19982.78
If we take 0 away from 0, we end up with 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

The final result is 19982.78 with a remainder of 0.0.