We're dividing 52570863 by 378 
We want to divide 52570863 by 378.

On to step 1:
If we divide 5 by 378, we get 0 and a remainder of 5.
Put 0 as the next digit of the answer. 
Result so far: 0.0
If we take 0 away from 5, we end up with 5.
Take the next digit (2) from the dividend and append it to 5, then repeat: 52 / 378

Let's proceed to step 2:
The number 378 fits into 52 0 times, leaving a remainder of 52.
Write down 0 as next digit of the result. 
Result so far: 0.0
The remainder is 52 after subtracting 0 from 52.
Append the next digit (5) from the dividend to 52 and continue with: 525 / 378

Moving on to step 3:
378 can be fit into 525 1 times, resulting in a remainder of 147.
Record the quotient 1 as the next digit in the result. 
Result so far: 1.0
Deduct 378 from 525 and we're left with 147.
Bring next digit (7) of the dividend behind the 147 and repeat the process: 1477 / 378

Let's proceed to step 4:
378 can be fit into 1477 3 times, resulting in a remainder of 343.
The number 3 becomes the next digit in our result. 
Result so far: 13.0
If we subtract 1134 from 1477, we get 343.
Append the next digit (0) from the dividend to 343 and continue with: 3430 / 378

Moving on to step 5:
If we divide 3430 by 378, we get 9 and a remainder of 28.
Put 9 as the next digit of the answer. 
Result so far: 139.0
Subtracting 3402 from 3430 leaves us with 28.
Grab the next digit (8) from the dividend, add it to 28, then carry on: 288 / 378

Going ahead to step 6:
378 goes into 288 0 times with a remainder of 288.
The next digit of our result is 0. 
Result so far: 1390.0
Deduct 0 from 288 and we're left with 288.
Grab the next digit (6) from the dividend, add it to 288, then carry on: 2886 / 378

On to step 7:
2886 divided by 378 is 7 with a remainder of 240.
Record the quotient 7 as the next digit in the result. 
Result so far: 13907.0
Deduct 2646 from 2886 and we're left with 240.
Fetch the next digit (3) from the dividend, attach it to 240 and continue: 2403 / 378

Step 8:
378 can be fit into 2403 6 times, resulting in a remainder of 135.
Write down 6 as next digit of the result. 
Result so far: 139076.0
The remainder is 135 after subtracting 2268 from 2403.
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 9:
The number 378 fits into 1350 3 times, leaving a remainder of 216.
Put 3 as the next digit of the answer. 
Result so far: 139076.3
The remainder is 216 after subtracting 1134 from 1350.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2160, and continue the process.

Going ahead to step 10:
378 goes into 2160 5 times with a remainder of 270.
Put 5 as the next digit of the answer. 
Result so far: 139076.35
The remainder is 270 after subtracting 1890 from 2160.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2700, and continue the process.

Moving on to step 11:
378 goes into 2700 7 times with a remainder of 54.
Use 7 as the next digit of our solution. 
Result so far: 139076.357
The remainder is 54 after subtracting 2646 from 2700.
Since there are no more digits in the dividend, we add a zero to the remainder making it 540, and continue the process.

Advancing to step 12:
The number 378 fits into 540 1 times, leaving a remainder of 162.
Use 1 as the next digit of our solution. 
Result so far: 139076.3571
Deduct 378 from 540 and we're left with 162.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1620, and continue the process.

Advancing to step 13:
The number 378 fits into 1620 4 times, leaving a remainder of 108.
Write down 4 as next digit of the result. 
Result so far: 139076.35714
Subtracting 1512 from 1620 leaves us with 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 14:
378 goes into 1080 2 times with a remainder of 324.
Use 2 as the next digit of our solution. 
Result so far: 139076.357142
Subtracting 756 from 1080 leaves us with 324.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3240, and continue the process.

Moving on to step 15:
378 goes into 3240 8 times with a remainder of 216.
Write down 8 as next digit of the result. 
Result so far: 139076.3571428
If we take 3024 away from 3240, we end up with 216.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2160, and continue the process.

Advancing to step 16:
When dividing 2160 by 378, we get 5 with a remainder of 270.
Use 5 as the next digit of our solution. 
Result so far: 139076.35714285
If we subtract 1890 from 2160, we get 270.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2700, and continue the process.

In conclusion, the division gives 139076.35714285 with a balance of 2.7e-07.