Let's divide 45173590 by 857
Let's see how many times 857 fits into 45173590.

Going ahead to step 1:
857 goes into 4 0 times with a remainder of 4.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Subtracting 0 from 4 leaves us with 4.
Fetch the next digit (5) from the dividend, attach it to 4 and continue: 45 / 857

Moving on to step 2:
When dividing 45 by 857, we get 0 with a remainder of 45.
Use 0 as the next digit of our solution. 
Result so far: 0.0
If we take 0 away from 45, we end up with 45.
Bring next digit (1) of the dividend behind the 45 and repeat the process: 451 / 857

Let's proceed to step 3:
When dividing 451 by 857, we get 0 with a remainder of 451.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Subtracting 0 from 451 leaves us with 451.
Append the next digit (7) from the dividend to 451 and continue with: 4517 / 857

Going ahead to step 4:
4517 divided by 857 is 5 with a remainder of 232.
Record the quotient 5 as the next digit in the result. 
Result so far: 5.0
Subtracting 4285 from 4517 leaves us with 232.
Take the next digit (3) from the dividend and append it to 232, then repeat: 2323 / 857

On to step 5:
If we divide 2323 by 857, we get 2 and a remainder of 609.
Put 2 as the next digit of the answer. 
Result so far: 52.0
Deduct 1714 from 2323 and we're left with 609.
Include the next digit (5) from the dividend after 609, then repeat: 6095 / 857

Moving on to step 6:
857 goes into 6095 7 times with a remainder of 96.
Record the quotient 7 as the next digit in the result. 
Result so far: 527.0
Subtracting 5999 from 6095 leaves us with 96.
Bring next digit (9) of the dividend behind the 96 and repeat the process: 969 / 857

Step 7:
The number 857 fits into 969 1 times, leaving a remainder of 112.
Use 1 as the next digit of our solution. 
Result so far: 5271.0
If we take 857 away from 969, we end up with 112.
Take the next digit (0) from the dividend and append it to 112, then repeat: 1120 / 857

Step 8:
857 goes into 1120 1 times with a remainder of 263.
Use 1 as the next digit of our solution. 
Result so far: 52711.0
Subtract 857 from 1120 to get 263.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2630, and continue the process.

Advancing to step 9:
2630 divided by 857 is 3 with a remainder of 59.
Record the quotient 3 as the next digit in the result. 
Result so far: 52711.3
Deduct 2571 from 2630 and we're left with 59.
Since there are no more digits in the dividend, we add a zero to the remainder making it 590, and continue the process.

Moving on to step 10:
590 divided by 857 is 0 with a remainder of 590.
The next digit of our result is 0. 
Result so far: 52711.3
The remainder is 590 after subtracting 0 from 590.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5900, and continue the process.

Moving on to step 11:
857 goes into 5900 6 times with a remainder of 758.
Write down 6 as next digit of the result. 
Result so far: 52711.306
If we take 5142 away from 5900, we end up with 758.
Since there are no more digits in the dividend, we add a zero to the remainder making it 7580, and continue the process.

On to step 12:
857 goes into 7580 8 times with a remainder of 724.
Put 8 as the next digit of the answer. 
Result so far: 52711.3068
The remainder is 724 after subtracting 6856 from 7580.
Since there are no more digits in the dividend, we add a zero to the remainder making it 7240, and continue the process.

Let's proceed to step 13:
857 can be fit into 7240 8 times, resulting in a remainder of 384.
The number 8 becomes the next digit in our result. 
Result so far: 52711.30688
Deduct 6856 from 7240 and we're left with 384.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3840, and continue the process.

The final result is 52711.30688 with a remainder of 0.000384.