51866064 ÷ 385 
Let's see how many times 385 fits into 51866064.

Step 1:
385 can be fit into 5 0 times, resulting in a remainder of 5.
Use 0 as the next digit of our solution. 
Result so far: 0.0
The remainder is 5 after subtracting 0 from 5.
Append the next digit (1) from the dividend to 5 and continue with: 51 / 385

Moving on to step 2:
If we divide 51 by 385, we get 0 and a remainder of 51.
Put 0 as the next digit of the answer. 
Result so far: 0.0
If we subtract 0 from 51, we get 51.
Bring next digit (8) of the dividend behind the 51 and repeat the process: 518 / 385

Going ahead to step 3:
518 divided by 385 is 1 with a remainder of 133.
The number 1 becomes the next digit in our result. 
Result so far: 1.0
Deduct 385 from 518 and we're left with 133.
Grab the next digit (6) from the dividend, add it to 133, then carry on: 1336 / 385

Going ahead to step 4:
1336 divided by 385 is 3 with a remainder of 181.
The next digit of our result is 3. 
Result so far: 13.0
Subtracting 1155 from 1336 leaves us with 181.
Bring next digit (6) of the dividend behind the 181 and repeat the process: 1816 / 385

On to step 5:
If we divide 1816 by 385, we get 4 and a remainder of 276.
Record the quotient 4 as the next digit in the result. 
Result so far: 134.0
The remainder is 276 after subtracting 1540 from 1816.
Append the next digit (0) from the dividend to 276 and continue with: 2760 / 385

Moving on to step 6:
385 goes into 2760 7 times with a remainder of 65.
The number 7 becomes the next digit in our result. 
Result so far: 1347.0
Subtract 2695 from 2760 to get 65.
Bring next digit (6) of the dividend behind the 65 and repeat the process: 656 / 385

On to step 7:
The number 385 fits into 656 1 times, leaving a remainder of 271.
The next digit of our result is 1. 
Result so far: 13471.0
Subtract 385 from 656 to get 271.
Take the next digit (4) from the dividend and append it to 271, then repeat: 2714 / 385

Let's proceed to step 8:
385 goes into 2714 7 times with a remainder of 19.
Record the quotient 7 as the next digit in the result. 
Result so far: 134717.0
The remainder is 19 after subtracting 2695 from 2714.
Since there are no more digits in the dividend, we add a zero to the remainder making it 190, and continue the process.

Moving on to step 9:
When dividing 190 by 385, we get 0 with a remainder of 190.
The next digit of our result is 0. 
Result so far: 134717.0
Subtract 0 from 190 to get 190.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1900, and continue the process.

Going ahead to step 10:
When dividing 1900 by 385, we get 4 with a remainder of 360.
Use 4 as the next digit of our solution. 
Result so far: 134717.04
Subtract 1540 from 1900 to get 360.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3600, and continue the process.

Let's proceed to step 11:
385 goes into 3600 9 times with a remainder of 135.
Record the quotient 9 as the next digit in the result. 
Result so far: 134717.049
Deduct 3465 from 3600 and we're left with 135.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1350, and continue the process.

Going ahead to step 12:
385 can be fit into 1350 3 times, resulting in a remainder of 195.
Write down 3 as next digit of the result. 
Result so far: 134717.0493
If we subtract 1155 from 1350, we get 195.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1950, and continue the process.

Advancing to step 13:
385 goes into 1950 5 times with a remainder of 25.
Write down 5 as next digit of the result. 
Result so far: 134717.04935
Subtract 1925 from 1950 to get 25.
Since there are no more digits in the dividend, we add a zero to the remainder making it 250, and continue the process.

Let's proceed to step 14:
250 divided by 385 is 0 with a remainder of 250.
Put 0 as the next digit of the answer. 
Result so far: 134717.04935
Deduct 0 from 250 and we're left with 250.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2500, and continue the process.

Going ahead to step 15:
385 goes into 2500 6 times with a remainder of 190.
Put 6 as the next digit of the answer. 
Result so far: 134717.0493506
Subtract 2310 from 2500 to get 190.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1900, and continue the process.

Going ahead to step 16:
If we divide 1900 by 385, we get 4 and a remainder of 360.
The next digit of our result is 4. 
Result so far: 134717.04935064
Subtracting 1540 from 1900 leaves us with 360.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3600, and continue the process.

After the division, we end up with 134717.04935064 and a remainder of 3.6e-07.