We divide 66857469 by 78
We want to divide 66857469 by 78.

Let's proceed to step 1:
6 divided by 78 is 0 with a remainder of 6.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
If we take 0 away from 6, we end up with 6.
Fetch the next digit (6) from the dividend, attach it to 6 and continue: 66 / 78

Going ahead to step 2:
If we divide 66 by 78, we get 0 and a remainder of 66.
Write down 0 as next digit of the result. 
Result so far: 0.0
The remainder is 66 after subtracting 0 from 66.
Append the next digit (8) from the dividend to 66 and continue with: 668 / 78

Moving on to step 3:
If we divide 668 by 78, we get 8 and a remainder of 44.
Put 8 as the next digit of the answer. 
Result so far: 8.0
Subtract 624 from 668 to get 44.
Take the next digit (5) from the dividend and append it to 44, then repeat: 445 / 78

Going ahead to step 4:
445 divided by 78 is 5 with a remainder of 55.
Write down 5 as next digit of the result. 
Result so far: 85.0
Subtract 390 from 445 to get 55.
Append the next digit (7) from the dividend to 55 and continue with: 557 / 78

Going ahead to step 5:
78 can be fit into 557 7 times, resulting in a remainder of 11.
Put 7 as the next digit of the answer. 
Result so far: 857.0
Deduct 546 from 557 and we're left with 11.
Bring next digit (4) of the dividend behind the 11 and repeat the process: 114 / 78

Going ahead to step 6:
If we divide 114 by 78, we get 1 and a remainder of 36.
The next digit of our result is 1. 
Result so far: 8571.0
If we take 78 away from 114, we end up with 36.
Fetch the next digit (6) from the dividend, attach it to 36 and continue: 366 / 78

Going ahead to step 7:
366 divided by 78 is 4 with a remainder of 54.
Use 4 as the next digit of our solution. 
Result so far: 85714.0
Subtract 312 from 366 to get 54.
Fetch the next digit (9) from the dividend, attach it to 54 and continue: 549 / 78

Step 8:
78 goes into 549 7 times with a remainder of 3.
The next digit of our result is 7. 
Result so far: 857147.0
Deduct 546 from 549 and we're left with 3.
Since there are no more digits in the dividend, we add a zero to the remainder making it 30, and continue the process.

On to step 9:
If we divide 30 by 78, we get 0 and a remainder of 30.
The next digit of our result is 0. 
Result so far: 857147.0
Subtract 0 from 30 to get 30.
Since there are no more digits in the dividend, we add a zero to the remainder making it 300, and continue the process.

Advancing to step 10:
If we divide 300 by 78, we get 3 and a remainder of 66.
Write down 3 as next digit of the result. 
Result so far: 857147.03
Deduct 234 from 300 and we're left with 66.
Since there are no more digits in the dividend, we add a zero to the remainder making it 660, and continue the process.

Going ahead to step 11:
660 divided by 78 is 8 with a remainder of 36.
Put 8 as the next digit of the answer. 
Result so far: 857147.038
Subtract 624 from 660 to get 36.
Since there are no more digits in the dividend, we add a zero to the remainder making it 360, and continue the process.

On to step 12:
78 goes into 360 4 times with a remainder of 48.
The number 4 becomes the next digit in our result. 
Result so far: 857147.0384
Subtract 312 from 360 to get 48.
Since there are no more digits in the dividend, we add a zero to the remainder making it 480, and continue the process.

Step 13:
78 can be fit into 480 6 times, resulting in a remainder of 12.
Record the quotient 6 as the next digit in the result. 
Result so far: 857147.03846
Subtracting 468 from 480 leaves us with 12.
Since there are no more digits in the dividend, we add a zero to the remainder making it 120, and continue the process.

Step 14:
The number 78 fits into 120 1 times, leaving a remainder of 42.
Put 1 as the next digit of the answer. 
Result so far: 857147.038461
Subtract 78 from 120 to get 42.
Since there are no more digits in the dividend, we add a zero to the remainder making it 420, and continue the process.

Moving on to step 15:
If we divide 420 by 78, we get 5 and a remainder of 30.
Record the quotient 5 as the next digit in the result. 
Result so far: 857147.0384615
Subtract 390 from 420 to get 30.
Since there are no more digits in the dividend, we add a zero to the remainder making it 300, and continue the process.

Advancing to step 16:
The number 78 fits into 300 3 times, leaving a remainder of 66.
The next digit of our result is 3. 
Result so far: 857147.03846153
Subtract 234 from 300 to get 66.
Since there are no more digits in the dividend, we add a zero to the remainder making it 660, and continue the process.

In conclusion, the division gives 857147.03846153 with a balance of 6.6e-08.