We look at the division of 66341678 by 378 
Let's see how many times 378 fits into 66341678.

Let's proceed to step 1:
6 divided by 378 is 0 with a remainder of 6.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Subtract 0 from 6 to get 6.
Bring next digit (6) of the dividend behind the 6 and repeat the process: 66 / 378

Moving on to step 2:
The number 378 fits into 66 0 times, leaving a remainder of 66.
Write down 0 as next digit of the result. 
Result so far: 0.0
Subtract 0 from 66 to get 66.
Bring next digit (3) of the dividend behind the 66 and repeat the process: 663 / 378

On to step 3:
378 goes into 663 1 times with a remainder of 285.
Use 1 as the next digit of our solution. 
Result so far: 1.0
Subtracting 378 from 663 leaves us with 285.
Take the next digit (4) from the dividend and append it to 285, then repeat: 2854 / 378

Step 4:
378 goes into 2854 7 times with a remainder of 208.
The next digit of our result is 7. 
Result so far: 17.0
If we subtract 2646 from 2854, we get 208.
Include the next digit (1) from the dividend after 208, then repeat: 2081 / 378

Going ahead to step 5:
2081 divided by 378 is 5 with a remainder of 191.
The number 5 becomes the next digit in our result. 
Result so far: 175.0
Deduct 1890 from 2081 and we're left with 191.
Grab the next digit (6) from the dividend, add it to 191, then carry on: 1916 / 378

Moving on to step 6:
When dividing 1916 by 378, we get 5 with a remainder of 26.
Write down 5 as next digit of the result. 
Result so far: 1755.0
The remainder is 26 after subtracting 1890 from 1916.
Fetch the next digit (7) from the dividend, attach it to 26 and continue: 267 / 378

On to step 7:
If we divide 267 by 378, we get 0 and a remainder of 267.
The number 0 becomes the next digit in our result. 
Result so far: 17550.0
Deduct 0 from 267 and we're left with 267.
Grab the next digit (8) from the dividend, add it to 267, then carry on: 2678 / 378

Going ahead to step 8:
If we divide 2678 by 378, we get 7 and a remainder of 32.
The next digit of our result is 7. 
Result so far: 175507.0
The remainder is 32 after subtracting 2646 from 2678.
Since there are no more digits in the dividend, we add a zero to the remainder making it 320, and continue the process.

Advancing to step 9:
When dividing 320 by 378, we get 0 with a remainder of 320.
Put 0 as the next digit of the answer. 
Result so far: 175507.0
If we take 0 away from 320, we end up with 320.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3200, and continue the process.

Advancing to step 10:
The number 378 fits into 3200 8 times, leaving a remainder of 176.
The next digit of our result is 8. 
Result so far: 175507.08
Subtracting 3024 from 3200 leaves us with 176.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1760, and continue the process.

Moving on to step 11:
When dividing 1760 by 378, we get 4 with a remainder of 248.
Put 4 as the next digit of the answer. 
Result so far: 175507.084
Subtracting 1512 from 1760 leaves us with 248.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2480, and continue the process.

Going ahead to step 12:
The number 378 fits into 2480 6 times, leaving a remainder of 212.
Write down 6 as next digit of the result. 
Result so far: 175507.0846
The remainder is 212 after subtracting 2268 from 2480.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2120, and continue the process.

On to step 13:
2120 divided by 378 is 5 with a remainder of 230.
Record the quotient 5 as the next digit in the result. 
Result so far: 175507.08465
Subtract 1890 from 2120 to get 230.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2300, and continue the process.

On to step 14:
The number 378 fits into 2300 6 times, leaving a remainder of 32.
Put 6 as the next digit of the answer. 
Result so far: 175507.084656
Deduct 2268 from 2300 and we're left with 32.
Since there are no more digits in the dividend, we add a zero to the remainder making it 320, and continue the process.

Going ahead to step 15:
320 divided by 378 is 0 with a remainder of 320.
Use 0 as the next digit of our solution. 
Result so far: 175507.084656
The remainder is 320 after subtracting 0 from 320.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3200, and continue the process.

Advancing to step 16:
When dividing 3200 by 378, we get 8 with a remainder of 176.
Record the quotient 8 as the next digit in the result. 
Result so far: 175507.08465608
Subtract 3024 from 3200 to get 176.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1760, and continue the process.

The final outcome is 175507.08465608, with a leftover of 1.76e-07.