We divide 21052909 by 378
We want to divide 21052909 by 378.

Going ahead to step 1:
378 goes into 2 0 times with a remainder of 2.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Subtracting 0 from 2 leaves us with 2.
Fetch the next digit (1) from the dividend, attach it to 2 and continue: 21 / 378

Step 2:
When dividing 21 by 378, we get 0 with a remainder of 21.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
If we take 0 away from 21, we end up with 21.
Include the next digit (0) from the dividend after 21, then repeat: 210 / 378

On to step 3:
378 goes into 210 0 times with a remainder of 210.
Write down 0 as next digit of the result. 
Result so far: 0.0
Deduct 0 from 210 and we're left with 210.
Include the next digit (5) from the dividend after 210, then repeat: 2105 / 378

Going ahead to step 4:
2105 divided by 378 is 5 with a remainder of 215.
The next digit of our result is 5. 
Result so far: 5.0
Subtracting 1890 from 2105 leaves us with 215.
Fetch the next digit (2) from the dividend, attach it to 215 and continue: 2152 / 378

Step 5:
The number 378 fits into 2152 5 times, leaving a remainder of 262.
Record the quotient 5 as the next digit in the result. 
Result so far: 55.0
If we take 1890 away from 2152, we end up with 262.
Take the next digit (9) from the dividend and append it to 262, then repeat: 2629 / 378

Moving on to step 6:
2629 divided by 378 is 6 with a remainder of 361.
The number 6 becomes the next digit in our result. 
Result so far: 556.0
The remainder is 361 after subtracting 2268 from 2629.
Include the next digit (0) from the dividend after 361, then repeat: 3610 / 378

Step 7:
If we divide 3610 by 378, we get 9 and a remainder of 208.
Record the quotient 9 as the next digit in the result. 
Result so far: 5569.0
Deduct 3402 from 3610 and we're left with 208.
Grab the next digit (9) from the dividend, add it to 208, then carry on: 2089 / 378

Moving on to step 8:
378 can be fit into 2089 5 times, resulting in a remainder of 199.
The next digit of our result is 5. 
Result so far: 55695.0
If we subtract 1890 from 2089, we get 199.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1990, and continue the process.

Step 9:
378 goes into 1990 5 times with a remainder of 100.
The next digit of our result is 5. 
Result so far: 55695.5
Deduct 1890 from 1990 and we're left with 100.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1000, and continue the process.

Going ahead to step 10:
1000 divided by 378 is 2 with a remainder of 244.
The number 2 becomes the next digit in our result. 
Result so far: 55695.52
If we subtract 756 from 1000, we get 244.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2440, and continue the process.

Advancing to step 11:
2440 divided by 378 is 6 with a remainder of 172.
Put 6 as the next digit of the answer. 
Result so far: 55695.526
Subtract 2268 from 2440 to get 172.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1720, and continue the process.

On to step 12:
1720 divided by 378 is 4 with a remainder of 208.
Put 4 as the next digit of the answer. 
Result so far: 55695.5264
The remainder is 208 after subtracting 1512 from 1720.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2080, and continue the process.

Let's proceed to step 13:
378 can be fit into 2080 5 times, resulting in a remainder of 190.
Record the quotient 5 as the next digit in the result. 
Result so far: 55695.52645
If we take 1890 away from 2080, we end up with 190.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1900, and continue the process.

Let's proceed to step 14:
378 can be fit into 1900 5 times, resulting in a remainder of 10.
The next digit of our result is 5. 
Result so far: 55695.526455
If we take 1890 away from 1900, we end up with 10.
Since there are no more digits in the dividend, we add a zero to the remainder making it 100, and continue the process.

Our division results in 55695.526455 with a remaining 1e-06.