We look at the division of 738309 by 50 
The aim is to understand the frequency of 50 in 738309.

On to step 1:
50 goes into 7 0 times with a remainder of 7.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Deduct 0 from 7 and we're left with 7.
Fetch the next digit (3) from the dividend, attach it to 7 and continue: 73 / 50

Going ahead to step 2:
73 divided by 50 is 1 with a remainder of 23.
The next digit of our result is 1. 
Result so far: 1.0
Deduct 50 from 73 and we're left with 23.
Bring next digit (8) of the dividend behind the 23 and repeat the process: 238 / 50

Moving on to step 3:
If we divide 238 by 50, we get 4 and a remainder of 38.
Put 4 as the next digit of the answer. 
Result so far: 14.0
Subtract 200 from 238 to get 38.
Bring next digit (3) of the dividend behind the 38 and repeat the process: 383 / 50

On to step 4:
50 can be fit into 383 7 times, resulting in a remainder of 33.
The number 7 becomes the next digit in our result. 
Result so far: 147.0
Subtracting 350 from 383 leaves us with 33.
Take the next digit (0) from the dividend and append it to 33, then repeat: 330 / 50

Let's proceed to step 5:
50 can be fit into 330 6 times, resulting in a remainder of 30.
The next digit of our result is 6. 
Result so far: 1476.0
Deduct 300 from 330 and we're left with 30.
Bring next digit (9) of the dividend behind the 30 and repeat the process: 309 / 50

Advancing to step 6:
309 divided by 50 is 6 with a remainder of 9.
The next digit of our result is 6. 
Result so far: 14766.0
Subtracting 300 from 309 leaves us with 9.
Since there are no more digits in the dividend, we add a zero to the remainder making it 90, and continue the process.

Let's proceed to step 7:
90 divided by 50 is 1 with a remainder of 40.
Put 1 as the next digit of the answer. 
Result so far: 14766.1
If we take 50 away from 90, we end up 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.

Moving on to step 8:
If we divide 400 by 50, we get 8 and a remainder of 0.
The next digit of our result is 8. 
Result so far: 14766.18
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:
50 can be fit into 0 0 times, resulting in a remainder of 0.
Put 0 as the next digit of the answer. 
Result so far: 14766.18
The remainder is 0 after subtracting 0 from 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:
If we divide 0 by 50, we get 0 and a remainder of 0.
The number 0 becomes the next digit in our result. 
Result so far: 14766.18
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.

Our division results in 14766.18 with a remaining 0.0.