86509847 divided by 50 
The aim is to understand the frequency of 50 in 86509847.

On to step 1:
8 divided by 50 is 0 with a remainder of 8.
Put 0 as the next digit of the answer. 
Result so far: 0.0
If we take 0 away from 8, we end up with 8.
Include the next digit (6) from the dividend after 8, then repeat: 86 / 50

Let's proceed to step 2:
When dividing 86 by 50, we get 1 with a remainder of 36.
Put 1 as the next digit of the answer. 
Result so far: 1.0
The remainder is 36 after subtracting 50 from 86.
Append the next digit (5) from the dividend to 36 and continue with: 365 / 50

Step 3:
The number 50 fits into 365 7 times, leaving a remainder of 15.
Use 7 as the next digit of our solution. 
Result so far: 17.0
Subtract 350 from 365 to get 15.
Include the next digit (0) from the dividend after 15, then repeat: 150 / 50

Advancing to step 4:
When dividing 150 by 50, we get 3 with a remainder of 0.
Put 3 as the next digit of the answer. 
Result so far: 173.0
Deduct 150 from 150 and we're left with 0.
Include the next digit (9) from the dividend after 0, then repeat: 9 / 50

Let's proceed to step 5:
The number 50 fits into 9 0 times, leaving a remainder of 9.
Record the quotient 0 as the next digit in the result. 
Result so far: 1730.0
The remainder is 9 after subtracting 0 from 9.
Include the next digit (8) from the dividend after 9, then repeat: 98 / 50

Let's proceed to step 6:
98 divided by 50 is 1 with a remainder of 48.
Write down 1 as next digit of the result. 
Result so far: 17301.0
If we take 50 away from 98, we end up with 48.
Grab the next digit (4) from the dividend, add it to 48, then carry on: 484 / 50

Let's proceed to step 7:
If we divide 484 by 50, we get 9 and a remainder of 34.
Put 9 as the next digit of the answer. 
Result so far: 173019.0
Deduct 450 from 484 and we're left with 34.
Fetch the next digit (7) from the dividend, attach it to 34 and continue: 347 / 50

Step 8:
50 can be fit into 347 6 times, resulting in a remainder of 47.
Write down 6 as next digit of the result. 
Result so far: 1730196.0
Subtracting 300 from 347 leaves us with 47.
Since there are no more digits in the dividend, we add a zero to the remainder making it 470, and continue the process.

Advancing to step 9:
When dividing 470 by 50, we get 9 with a remainder of 20.
The next digit of our result is 9. 
Result so far: 1730196.9
If we subtract 450 from 470, we get 20.
Since there are no more digits in the dividend, we add a zero to the remainder making it 200, and continue the process.

Step 10:
200 divided by 50 is 4 with a remainder of 0.
The next digit of our result is 4. 
Result so far: 1730196.94
Deduct 200 from 200 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.

Going ahead to step 11:
50 can be fit into 0 0 times, resulting in a remainder of 0.
The number 0 becomes the next digit in our result. 
Result so far: 1730196.94
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.

Going ahead to step 12:
50 goes into 0 0 times with a remainder of 0.
The next digit of our result is 0. 
Result so far: 1730196.94
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.

After the division, we end up with 1730196.94 and a remainder of 0.0.