53685143 divided by 378 
Let's see how many times 378 fits into 53685143.

On to step 1:
5 divided by 378 is 0 with a remainder of 5.
Write down 0 as next digit of the result. 
Result so far: 0.0
Subtract 0 from 5 to get 5.
Take the next digit (3) from the dividend and append it to 5, then repeat: 53 / 378

Advancing to step 2:
378 can be fit into 53 0 times, resulting in a remainder of 53.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
If we take 0 away from 53, we end up with 53.
Include the next digit (6) from the dividend after 53, then repeat: 536 / 378

Step 3:
378 can be fit into 536 1 times, resulting in a remainder of 158.
The next digit of our result is 1. 
Result so far: 1.0
If we take 378 away from 536, we end up with 158.
Fetch the next digit (8) from the dividend, attach it to 158 and continue: 1588 / 378

Advancing to step 4:
1588 divided by 378 is 4 with a remainder of 76.
Write down 4 as next digit of the result. 
Result so far: 14.0
Deduct 1512 from 1588 and we're left with 76.
Append the next digit (5) from the dividend to 76 and continue with: 765 / 378

On to step 5:
378 goes into 765 2 times with a remainder of 9.
The next digit of our result is 2. 
Result so far: 142.0
Deduct 756 from 765 and we're left with 9.
Include the next digit (1) from the dividend after 9, then repeat: 91 / 378

Advancing to step 6:
When dividing 91 by 378, we get 0 with a remainder of 91.
Record the quotient 0 as the next digit in the result. 
Result so far: 1420.0
The remainder is 91 after subtracting 0 from 91.
Fetch the next digit (4) from the dividend, attach it to 91 and continue: 914 / 378

On to step 7:
914 divided by 378 is 2 with a remainder of 158.
Put 2 as the next digit of the answer. 
Result so far: 14202.0
Subtracting 756 from 914 leaves us with 158.
Include the next digit (3) from the dividend after 158, then repeat: 1583 / 378

On to step 8:
1583 divided by 378 is 4 with a remainder of 71.
Put 4 as the next digit of the answer. 
Result so far: 142024.0
If we take 1512 away from 1583, we end up with 71.
Since there are no more digits in the dividend, we add a zero to the remainder making it 710, and continue the process.

Going ahead to step 9:
The number 378 fits into 710 1 times, leaving a remainder of 332.
Use 1 as the next digit of our solution. 
Result so far: 142024.1
If we take 378 away from 710, we end up with 332.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3320, and continue the process.

Moving on to step 10:
378 goes into 3320 8 times with a remainder of 296.
The next digit of our result is 8. 
Result so far: 142024.18
Subtract 3024 from 3320 to get 296.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2960, and continue the process.

On to step 11:
If we divide 2960 by 378, we get 7 and a remainder of 314.
The next digit of our result is 7. 
Result so far: 142024.187
If we subtract 2646 from 2960, we get 314.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3140, and continue the process.

Let's proceed to step 12:
When dividing 3140 by 378, we get 8 with a remainder of 116.
The number 8 becomes the next digit in our result. 
Result so far: 142024.1878
Subtracting 3024 from 3140 leaves us with 116.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1160, and continue the process.

Advancing to step 13:
378 goes into 1160 3 times with a remainder of 26.
Use 3 as the next digit of our solution. 
Result so far: 142024.18783
Subtract 1134 from 1160 to get 26.
Since there are no more digits in the dividend, we add a zero to the remainder making it 260, and continue the process.

Let's proceed to step 14:
When dividing 260 by 378, we get 0 with a remainder of 260.
The number 0 becomes the next digit in our result. 
Result so far: 142024.18783
Subtract 0 from 260 to get 260.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2600, and continue the process.

Advancing to step 15:
If we divide 2600 by 378, we get 6 and a remainder of 332.
The number 6 becomes the next digit in our result. 
Result so far: 142024.1878306
If we subtract 2268 from 2600, we get 332.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3320, and continue the process.

Advancing to step 16:
When dividing 3320 by 378, we get 8 with a remainder of 296.
Use 8 as the next digit of our solution. 
Result so far: 142024.18783068
Subtract 3024 from 3320 to get 296.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2960, and continue the process.

Our division results in 142024.18783068 with a remaining 2.96e-07.