57810191 ÷ 545 
We want to figure out the number of times 57810191 can be divided by 545.

Going ahead to step 1:
545 can be fit into 5 0 times, resulting in a remainder of 5.
Write down 0 as next digit of the result. 
Result so far: 0.0
If we subtract 0 from 5, we get 5.
Grab the next digit (7) from the dividend, add it to 5, then carry on: 57 / 545

Advancing to step 2:
545 can be fit into 57 0 times, resulting in a remainder of 57.
Write down 0 as next digit of the result. 
Result so far: 0.0
Subtracting 0 from 57 leaves us with 57.
Include the next digit (8) from the dividend after 57, then repeat: 578 / 545

Advancing to step 3:
545 can be fit into 578 1 times, resulting in a remainder of 33.
Put 1 as the next digit of the answer. 
Result so far: 1.0
If we subtract 545 from 578, we get 33.
Fetch the next digit (1) from the dividend, attach it to 33 and continue: 331 / 545

Moving on to step 4:
When dividing 331 by 545, we get 0 with a remainder of 331.
Use 0 as the next digit of our solution. 
Result so far: 10.0
If we subtract 0 from 331, we get 331.
Fetch the next digit (0) from the dividend, attach it to 331 and continue: 3310 / 545

Moving on to step 5:
The number 545 fits into 3310 6 times, leaving a remainder of 40.
The number 6 becomes the next digit in our result. 
Result so far: 106.0
If we subtract 3270 from 3310, we get 40.
Include the next digit (1) from the dividend after 40, then repeat: 401 / 545

Advancing to step 6:
545 can be fit into 401 0 times, resulting in a remainder of 401.
Record the quotient 0 as the next digit in the result. 
Result so far: 1060.0
If we subtract 0 from 401, we get 401.
Append the next digit (9) from the dividend to 401 and continue with: 4019 / 545

On to step 7:
The number 545 fits into 4019 7 times, leaving a remainder of 204.
Put 7 as the next digit of the answer. 
Result so far: 10607.0
Subtracting 3815 from 4019 leaves us with 204.
Fetch the next digit (1) from the dividend, attach it to 204 and continue: 2041 / 545

On to step 8:
When dividing 2041 by 545, we get 3 with a remainder of 406.
Write down 3 as next digit of the result. 
Result so far: 106073.0
If we take 1635 away from 2041, we end up with 406.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4060, and continue the process.

On to step 9:
The number 545 fits into 4060 7 times, leaving a remainder of 245.
Put 7 as the next digit of the answer. 
Result so far: 106073.7
If we take 3815 away from 4060, we end up with 245.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2450, and continue the process.

Moving on to step 10:
2450 divided by 545 is 4 with a remainder of 270.
The next digit of our result is 4. 
Result so far: 106073.74
If we take 2180 away from 2450, we end up with 270.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2700, and continue the process.

Step 11:
545 goes into 2700 4 times with a remainder of 520.
The number 4 becomes the next digit in our result. 
Result so far: 106073.744
Subtracting 2180 from 2700 leaves us with 520.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5200, and continue the process.

The final result is 106073.744 with a remainder of 0.052.