303615 ÷ 50 
The aim is to understand the frequency of 50 in 303615.

On to step 1:
If we divide 3 by 50, we get 0 and a remainder of 3.
Write down 0 as next digit of the result. 
Result so far: 0.0
The remainder is 3 after subtracting 0 from 3.
Take the next digit (0) from the dividend and append it to 3, then repeat: 30 / 50

Advancing to step 2:
The number 50 fits into 30 0 times, leaving a remainder of 30.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Deduct 0 from 30 and we're left with 30.
Fetch the next digit (3) from the dividend, attach it to 30 and continue: 303 / 50

Step 3:
When dividing 303 by 50, we get 6 with a remainder of 3.
Write down 6 as next digit of the result. 
Result so far: 6.0
Subtract 300 from 303 to get 3.
Include the next digit (6) from the dividend after 3, then repeat: 36 / 50

Let's proceed to step 4:
50 can be fit into 36 0 times, resulting in a remainder of 36.
The number 0 becomes the next digit in our result. 
Result so far: 60.0
Subtract 0 from 36 to get 36.
Bring next digit (1) of the dividend behind the 36 and repeat the process: 361 / 50

Moving on to step 5:
The number 50 fits into 361 7 times, leaving a remainder of 11.
Use 7 as the next digit of our solution. 
Result so far: 607.0
Subtracting 350 from 361 leaves us with 11.
Bring next digit (5) of the dividend behind the 11 and repeat the process: 115 / 50

Let's proceed to step 6:
50 goes into 115 2 times with a remainder of 15.
Record the quotient 2 as the next digit in the result. 
Result so far: 6072.0
Deduct 100 from 115 and we're left with 15.
Since there are no more digits in the dividend, we add a zero to the remainder making it 150, and continue the process.

Advancing to step 7:
If we divide 150 by 50, we get 3 and a remainder of 0.
Record the quotient 3 as the next digit in the result. 
Result so far: 6072.3
Subtracting 150 from 150 leaves us 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.

Let's proceed to step 8:
50 goes into 0 0 times with a remainder of 0.
The number 0 becomes the next digit in our result. 
Result so far: 6072.3
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.

On to step 9:
The number 50 fits into 0 0 times, leaving a remainder of 0.
Put 0 as the next digit of the answer. 
Result so far: 6072.3
Subtracting 0 from 0 leaves us 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 quotient of the division is 6072.3, and the remainder is 0.0.