We look at the division of 50971791 by 186 
We want to figure out the number of times 50971791 can be divided by 186.

Let's proceed to step 1:
When dividing 5 by 186, we get 0 with a remainder of 5.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Subtract 0 from 5 to get 5.
Bring next digit (0) of the dividend behind the 5 and repeat the process: 50 / 186

Moving on to step 2:
186 goes into 50 0 times with a remainder of 50.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Deduct 0 from 50 and we're left with 50.
Append the next digit (9) from the dividend to 50 and continue with: 509 / 186

Moving on to step 3:
186 can be fit into 509 2 times, resulting in a remainder of 137.
Use 2 as the next digit of our solution. 
Result so far: 2.0
Deduct 372 from 509 and we're left with 137.
Bring next digit (7) of the dividend behind the 137 and repeat the process: 1377 / 186

Moving on to step 4:
186 can be fit into 1377 7 times, resulting in a remainder of 75.
Record the quotient 7 as the next digit in the result. 
Result so far: 27.0
If we subtract 1302 from 1377, we get 75.
Include the next digit (1) from the dividend after 75, then repeat: 751 / 186

On to step 5:
If we divide 751 by 186, we get 4 and a remainder of 7.
Use 4 as the next digit of our solution. 
Result so far: 274.0
Subtracting 744 from 751 leaves us with 7.
Take the next digit (7) from the dividend and append it to 7, then repeat: 77 / 186

Step 6:
The number 186 fits into 77 0 times, leaving a remainder of 77.
Use 0 as the next digit of our solution. 
Result so far: 2740.0
If we take 0 away from 77, we end up with 77.
Append the next digit (9) from the dividend to 77 and continue with: 779 / 186

Going ahead to step 7:
186 can be fit into 779 4 times, resulting in a remainder of 35.
Put 4 as the next digit of the answer. 
Result so far: 27404.0
Subtract 744 from 779 to get 35.
Take the next digit (1) from the dividend and append it to 35, then repeat: 351 / 186

Moving on to step 8:
351 divided by 186 is 1 with a remainder of 165.
Use 1 as the next digit of our solution. 
Result so far: 274041.0
Subtract 186 from 351 to get 165.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1650, and continue the process.

Going ahead to step 9:
186 can be fit into 1650 8 times, resulting in a remainder of 162.
The next digit of our result is 8. 
Result so far: 274041.8
The remainder is 162 after subtracting 1488 from 1650.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1620, and continue the process.

Going ahead to step 10:
186 goes into 1620 8 times with a remainder of 132.
Put 8 as the next digit of the answer. 
Result so far: 274041.88
Subtracting 1488 from 1620 leaves us with 132.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1320, and continue the process.

After the division, we end up with 274041.88 and a remainder of 0.132.