Let's divide 51721115 by 388
We want to divide 51721115 by 388.

Moving on to step 1:
When dividing 5 by 388, we get 0 with a remainder of 5.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Subtracting 0 from 5 leaves us with 5.
Fetch the next digit (1) from the dividend, attach it to 5 and continue: 51 / 388

Let's proceed to step 2:
51 divided by 388 is 0 with a remainder of 51.
The next digit of our result is 0. 
Result so far: 0.0
If we take 0 away from 51, we end up with 51.
Bring next digit (7) of the dividend behind the 51 and repeat the process: 517 / 388

On to step 3:
When dividing 517 by 388, we get 1 with a remainder of 129.
Write down 1 as next digit of the result. 
Result so far: 1.0
Deduct 388 from 517 and we're left with 129.
Take the next digit (2) from the dividend and append it to 129, then repeat: 1292 / 388

Step 4:
388 can be fit into 1292 3 times, resulting in a remainder of 128.
Record the quotient 3 as the next digit in the result. 
Result so far: 13.0
The remainder is 128 after subtracting 1164 from 1292.
Grab the next digit (1) from the dividend, add it to 128, then carry on: 1281 / 388

Advancing to step 5:
When dividing 1281 by 388, we get 3 with a remainder of 117.
Use 3 as the next digit of our solution. 
Result so far: 133.0
Subtracting 1164 from 1281 leaves us with 117.
Include the next digit (1) from the dividend after 117, then repeat: 1171 / 388

Advancing to step 6:
If we divide 1171 by 388, we get 3 and a remainder of 7.
Put 3 as the next digit of the answer. 
Result so far: 1333.0
If we subtract 1164 from 1171, we get 7.
Grab the next digit (1) from the dividend, add it to 7, then carry on: 71 / 388

Step 7:
71 divided by 388 is 0 with a remainder of 71.
The next digit of our result is 0. 
Result so far: 13330.0
If we subtract 0 from 71, we get 71.
Append the next digit (5) from the dividend to 71 and continue with: 715 / 388

Going ahead to step 8:
388 goes into 715 1 times with a remainder of 327.
Record the quotient 1 as the next digit in the result. 
Result so far: 133301.0
Subtract 388 from 715 to get 327.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3270, and continue the process.

Advancing to step 9:
3270 divided by 388 is 8 with a remainder of 166.
The number 8 becomes the next digit in our result. 
Result so far: 133301.8
The remainder is 166 after subtracting 3104 from 3270.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1660, and continue the process.

Going ahead to step 10:
If we divide 1660 by 388, we get 4 and a remainder of 108.
The number 4 becomes the next digit in our result. 
Result so far: 133301.84
Subtract 1552 from 1660 to get 108.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1080, and continue the process.

On to step 11:
The number 388 fits into 1080 2 times, leaving a remainder of 304.
The next digit of our result is 2. 
Result so far: 133301.842
Subtract 776 from 1080 to get 304.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3040, and continue the process.

Step 12:
If we divide 3040 by 388, we get 7 and a remainder of 324.
Record the quotient 7 as the next digit in the result. 
Result so far: 133301.8427
If we subtract 2716 from 3040, we get 324.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3240, and continue the process.

Going ahead to step 13:
3240 divided by 388 is 8 with a remainder of 136.
Put 8 as the next digit of the answer. 
Result so far: 133301.84278
If we take 3104 away from 3240, we end up with 136.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1360, and continue the process.

On to step 14:
388 can be fit into 1360 3 times, resulting in a remainder of 196.
Record the quotient 3 as the next digit in the result. 
Result so far: 133301.842783
Deduct 1164 from 1360 and we're left with 196.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1960, and continue the process.

Moving on to step 15:
If we divide 1960 by 388, we get 5 and a remainder of 20.
Record the quotient 5 as the next digit in the result. 
Result so far: 133301.8427835
The remainder is 20 after subtracting 1940 from 1960.
Since there are no more digits in the dividend, we add a zero to the remainder making it 200, and continue the process.

Let's proceed to step 16:
If we divide 200 by 388, we get 0 and a remainder of 200.
The number 0 becomes the next digit in our result. 
Result so far: 133301.8427835
If we take 0 away from 200, we end up with 200.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2000, and continue the process.

The final outcome is 133301.8427835, with a leftover of 2e-07.