We divide 521761 by 50
The aim is to understand the frequency of 50 in 521761.

Advancing to step 1:
The number 50 fits into 5 0 times, leaving a remainder of 5.
Put 0 as the next digit of the answer. 
Result so far: 0.0
If we subtract 0 from 5, we get 5.
Append the next digit (2) from the dividend to 5 and continue with: 52 / 50

Moving on to step 2:
50 goes into 52 1 times with a remainder of 2.
The next digit of our result is 1. 
Result so far: 1.0
If we take 50 away from 52, we end up with 2.
Bring next digit (1) of the dividend behind the 2 and repeat the process: 21 / 50

Advancing to step 3:
50 goes into 21 0 times with a remainder of 21.
Use 0 as the next digit of our solution. 
Result so far: 10.0
If we take 0 away from 21, we end up with 21.
Append the next digit (7) from the dividend to 21 and continue with: 217 / 50

On to step 4:
217 divided by 50 is 4 with a remainder of 17.
Write down 4 as next digit of the result. 
Result so far: 104.0
If we subtract 200 from 217, we get 17.
Grab the next digit (6) from the dividend, add it to 17, then carry on: 176 / 50

On to step 5:
50 goes into 176 3 times with a remainder of 26.
Write down 3 as next digit of the result. 
Result so far: 1043.0
The remainder is 26 after subtracting 150 from 176.
Fetch the next digit (1) from the dividend, attach it to 26 and continue: 261 / 50

Advancing to step 6:
50 can be fit into 261 5 times, resulting in a remainder of 11.
The next digit of our result is 5. 
Result so far: 10435.0
Subtract 250 from 261 to get 11.
Since there are no more digits in the dividend, we add a zero to the remainder making it 110, and continue the process.

Moving on to step 7:
50 can be fit into 110 2 times, resulting in a remainder of 10.
The number 2 becomes the next digit in our result. 
Result so far: 10435.2
Subtracting 100 from 110 leaves us with 10.
Since there are no more digits in the dividend, we add a zero to the remainder making it 100, and continue the process.

Moving on to step 8:
When dividing 100 by 50, we get 2 with a remainder of 0.
Record the quotient 2 as the next digit in the result. 
Result so far: 10435.22
Subtract 100 from 100 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.

The final outcome is 10435.22, with a leftover of 0.0.