851646 ÷ 57 
Let's see how many times 57 fits into 851646.

Advancing to step 1:
The number 57 fits into 8 0 times, leaving a remainder of 8.
Put 0 as the next digit of the answer. 
Result so far: 0.0
The remainder is 8 after subtracting 0 from 8.
Take the next digit (5) from the dividend and append it to 8, then repeat: 85 / 57

Advancing to step 2:
85 divided by 57 is 1 with a remainder of 28.
Write down 1 as next digit of the result. 
Result so far: 1.0
If we take 57 away from 85, we end up with 28.
Include the next digit (1) from the dividend after 28, then repeat: 281 / 57

Step 3:
If we divide 281 by 57, we get 4 and a remainder of 53.
The next digit of our result is 4. 
Result so far: 14.0
If we take 228 away from 281, we end up with 53.
Include the next digit (6) from the dividend after 53, then repeat: 536 / 57

Going ahead to step 4:
536 divided by 57 is 9 with a remainder of 23.
Use 9 as the next digit of our solution. 
Result so far: 149.0
If we take 513 away from 536, we end up with 23.
Bring next digit (4) of the dividend behind the 23 and repeat the process: 234 / 57

Moving on to step 5:
The number 57 fits into 234 4 times, leaving a remainder of 6.
Put 4 as the next digit of the answer. 
Result so far: 1494.0
If we subtract 228 from 234, we get 6.
Take the next digit (6) from the dividend and append it to 6, then repeat: 66 / 57

Advancing to step 6:
57 goes into 66 1 times with a remainder of 9.
The number 1 becomes the next digit in our result. 
Result so far: 14941.0
Subtract 57 from 66 to get 9.
Since there are no more digits in the dividend, we add a zero to the remainder making it 90, and continue the process.

On to step 7:
57 can be fit into 90 1 times, resulting in a remainder of 33.
The next digit of our result is 1. 
Result so far: 14941.1
If we subtract 57 from 90, we get 33.
Since there are no more digits in the dividend, we add a zero to the remainder making it 330, and continue the process.

Advancing to step 8:
57 goes into 330 5 times with a remainder of 45.
Use 5 as the next digit of our solution. 
Result so far: 14941.15
If we subtract 285 from 330, we get 45.
Since there are no more digits in the dividend, we add a zero to the remainder making it 450, and continue the process.

On to step 9:
When dividing 450 by 57, we get 7 with a remainder of 51.
Put 7 as the next digit of the answer. 
Result so far: 14941.157
Subtract 399 from 450 to get 51.
Since there are no more digits in the dividend, we add a zero to the remainder making it 510, and continue the process.

Advancing to step 10:
If we divide 510 by 57, we get 8 and a remainder of 54.
Use 8 as the next digit of our solution. 
Result so far: 14941.1578
If we take 456 away from 510, we end up with 54.
Since there are no more digits in the dividend, we add a zero to the remainder making it 540, and continue the process.

Step 11:
When dividing 540 by 57, we get 9 with a remainder of 27.
The number 9 becomes the next digit in our result. 
Result so far: 14941.15789
Subtract 513 from 540 to get 27.
Since there are no more digits in the dividend, we add a zero to the remainder making it 270, and continue the process.

Step 12:
The number 57 fits into 270 4 times, leaving a remainder of 42.
Write down 4 as next digit of the result. 
Result so far: 14941.157894
If we take 228 away from 270, we end up with 42.
Since there are no more digits in the dividend, we add a zero to the remainder making it 420, and continue the process.

On to step 13:
420 divided by 57 is 7 with a remainder of 21.
Write down 7 as next digit of the result. 
Result so far: 14941.1578947
Subtract 399 from 420 to get 21.
Since there are no more digits in the dividend, we add a zero to the remainder making it 210, and continue the process.

Step 14:
57 can be fit into 210 3 times, resulting in a remainder of 39.
Use 3 as the next digit of our solution. 
Result so far: 14941.15789473
Deduct 171 from 210 and we're left with 39.
Since there are no more digits in the dividend, we add a zero to the remainder making it 390, and continue the process.

After the division, we end up with 14941.15789473 and a remainder of 3.9e-08.