Let's divide 4157591 by 393
We're looking to find how many times 393 goes into 4157591.

On to step 1:
393 goes into 4 0 times with a remainder of 4.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Subtract 0 from 4 to get 4.
Include the next digit (1) from the dividend after 4, then repeat: 41 / 393

Step 2:
If we divide 41 by 393, we get 0 and a remainder of 41.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
If we subtract 0 from 41, we get 41.
Grab the next digit (5) from the dividend, add it to 41, then carry on: 415 / 393

Let's proceed to step 3:
When dividing 415 by 393, we get 1 with a remainder of 22.
Use 1 as the next digit of our solution. 
Result so far: 1.0
Subtract 393 from 415 to get 22.
Append the next digit (7) from the dividend to 22 and continue with: 227 / 393

Going ahead to step 4:
If we divide 227 by 393, we get 0 and a remainder of 227.
Record the quotient 0 as the next digit in the result. 
Result so far: 10.0
Deduct 0 from 227 and we're left with 227.
Bring next digit (5) of the dividend behind the 227 and repeat the process: 2275 / 393

Moving on to step 5:
When dividing 2275 by 393, we get 5 with a remainder of 310.
Put 5 as the next digit of the answer. 
Result so far: 105.0
Deduct 1965 from 2275 and we're left with 310.
Bring next digit (9) of the dividend behind the 310 and repeat the process: 3109 / 393

Step 6:
3109 divided by 393 is 7 with a remainder of 358.
Put 7 as the next digit of the answer. 
Result so far: 1057.0
Subtract 2751 from 3109 to get 358.
Take the next digit (1) from the dividend and append it to 358, then repeat: 3581 / 393

Advancing to step 7:
3581 divided by 393 is 9 with a remainder of 44.
Write down 9 as next digit of the result. 
Result so far: 10579.0
If we subtract 3537 from 3581, we get 44.
Since there are no more digits in the dividend, we add a zero to the remainder making it 440, and continue the process.

Moving on to step 8:
393 goes into 440 1 times with a remainder of 47.
Record the quotient 1 as the next digit in the result. 
Result so far: 10579.1
If we take 393 away from 440, we end up 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.

Going ahead to step 9:
When dividing 470 by 393, we get 1 with a remainder of 77.
Use 1 as the next digit of our solution. 
Result so far: 10579.11
Subtracting 393 from 470 leaves us with 77.
Since there are no more digits in the dividend, we add a zero to the remainder making it 770, and continue the process.

After the division, we end up with 10579.11 and a remainder of 0.077.