We look at the division of 361503 by 50 
The aim is to understand the frequency of 50 in 361503.

Advancing to step 1:
The number 50 fits into 3 0 times, leaving a remainder of 3.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Subtract 0 from 3 to get 3.
Take the next digit (6) from the dividend and append it to 3, then repeat: 36 / 50

Going ahead to step 2:
36 divided by 50 is 0 with a remainder of 36.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
If we subtract 0 from 36, we get 36.
Take the next digit (1) from the dividend and append it to 36, then repeat: 361 / 50

Step 3:
50 can be fit into 361 7 times, resulting in a remainder of 11.
Use 7 as the next digit of our solution. 
Result so far: 7.0
The remainder is 11 after subtracting 350 from 361.
Take the next digit (5) from the dividend and append it to 11, then repeat: 115 / 50

Advancing to step 4:
115 divided by 50 is 2 with a remainder of 15.
Put 2 as the next digit of the answer. 
Result so far: 72.0
If we subtract 100 from 115, we get 15.
Include the next digit (0) from the dividend after 15, then repeat: 150 / 50

Step 5:
If we divide 150 by 50, we get 3 and a remainder of 0.
The number 3 becomes the next digit in our result. 
Result so far: 723.0
Subtract 150 from 150 to get 0.
Grab the next digit (3) from the dividend, add it to 0, then carry on: 3 / 50

Moving on to step 6:
50 goes into 3 0 times with a remainder of 3.
Use 0 as the next digit of our solution. 
Result so far: 7230.0
Subtracting 0 from 3 leaves us with 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 7:
50 goes into 30 0 times with a remainder of 30.
The number 0 becomes the next digit in our result. 
Result so far: 7230.0
Subtract 0 from 30 to get 30.
Since there are no more digits in the dividend, we add a zero to the remainder making it 300, and continue the process.

Advancing to step 8:
50 can be fit into 300 6 times, resulting in a remainder of 0.
Put 6 as the next digit of the answer. 
Result so far: 7230.06
The remainder is 0 after subtracting 300 from 300.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

On to step 9:
If we divide 0 by 50, we get 0 and a remainder of 0.
Put 0 as the next digit of the answer. 
Result so far: 7230.06
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.

Moving on 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: 7230.06
If we subtract 0 from 0, we 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.

The quotient of the division is 7230.06, and the remainder is 0.0.