54185345 ÷ 857 
Let's see how many times 857 fits into 54185345.

Going ahead to step 1:
The number 857 fits into 5 0 times, leaving 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 (4) of the dividend behind the 5 and repeat the process: 54 / 857

Going ahead to step 2:
When dividing 54 by 857, we get 0 with a remainder of 54.
The next digit of our result is 0. 
Result so far: 0.0
The remainder is 54 after subtracting 0 from 54.
Include the next digit (1) from the dividend after 54, then repeat: 541 / 857

Moving on to step 3:
When dividing 541 by 857, we get 0 with a remainder of 541.
Write down 0 as next digit of the result. 
Result so far: 0.0
Deduct 0 from 541 and we're left with 541.
Grab the next digit (8) from the dividend, add it to 541, then carry on: 5418 / 857

Moving on to step 4:
When dividing 5418 by 857, we get 6 with a remainder of 276.
The number 6 becomes the next digit in our result. 
Result so far: 6.0
Deduct 5142 from 5418 and we're left with 276.
Bring next digit (5) of the dividend behind the 276 and repeat the process: 2765 / 857

Let's proceed to step 5:
If we divide 2765 by 857, we get 3 and a remainder of 194.
The next digit of our result is 3. 
Result so far: 63.0
Deduct 2571 from 2765 and we're left with 194.
Fetch the next digit (3) from the dividend, attach it to 194 and continue: 1943 / 857

Going ahead to step 6:
857 goes into 1943 2 times with a remainder of 229.
Use 2 as the next digit of our solution. 
Result so far: 632.0
The remainder is 229 after subtracting 1714 from 1943.
Take the next digit (4) from the dividend and append it to 229, then repeat: 2294 / 857

Moving on to step 7:
857 goes into 2294 2 times with a remainder of 580.
Use 2 as the next digit of our solution. 
Result so far: 6322.0
Deduct 1714 from 2294 and we're left with 580.
Include the next digit (5) from the dividend after 580, then repeat: 5805 / 857

On to step 8:
If we divide 5805 by 857, we get 6 and a remainder of 663.
Put 6 as the next digit of the answer. 
Result so far: 63226.0
Subtracting 5142 from 5805 leaves us with 663.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6630, and continue the process.

Let's proceed to step 9:
The number 857 fits into 6630 7 times, leaving a remainder of 631.
Use 7 as the next digit of our solution. 
Result so far: 63226.7
Deduct 5999 from 6630 and we're left with 631.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6310, and continue the process.

Advancing to step 10:
If we divide 6310 by 857, we get 7 and a remainder of 311.
The next digit of our result is 7. 
Result so far: 63226.77
Deduct 5999 from 6310 and we're left with 311.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3110, and continue the process.

The final result is 63226.77 with a remainder of 0.311.