We divide 670661 by 78
Let's see how many times 78 fits into 670661.

Advancing to step 1:
78 goes into 6 0 times with a remainder of 6.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
If we subtract 0 from 6, we get 6.
Fetch the next digit (7) from the dividend, attach it to 6 and continue: 67 / 78

On to step 2:
When dividing 67 by 78, we get 0 with a remainder of 67.
Put 0 as the next digit of the answer. 
Result so far: 0.0
The remainder is 67 after subtracting 0 from 67.
Include the next digit (0) from the dividend after 67, then repeat: 670 / 78

Step 3:
670 divided by 78 is 8 with a remainder of 46.
The number 8 becomes the next digit in our result. 
Result so far: 8.0
Subtracting 624 from 670 leaves us with 46.
Fetch the next digit (6) from the dividend, attach it to 46 and continue: 466 / 78

Step 4:
The number 78 fits into 466 5 times, leaving a remainder of 76.
The next digit of our result is 5. 
Result so far: 85.0
Subtracting 390 from 466 leaves us with 76.
Bring next digit (6) of the dividend behind the 76 and repeat the process: 766 / 78

Going ahead to step 5:
If we divide 766 by 78, we get 9 and a remainder of 64.
Put 9 as the next digit of the answer. 
Result so far: 859.0
Subtracting 702 from 766 leaves us with 64.
Include the next digit (1) from the dividend after 64, then repeat: 641 / 78

Going ahead to step 6:
641 divided by 78 is 8 with a remainder of 17.
Record the quotient 8 as the next digit in the result. 
Result so far: 8598.0
If we subtract 624 from 641, we get 17.
Since there are no more digits in the dividend, we add a zero to the remainder making it 170, and continue the process.

Going ahead to step 7:
If we divide 170 by 78, we get 2 and a remainder of 14.
Write down 2 as next digit of the result. 
Result so far: 8598.2
Deduct 156 from 170 and we're left with 14.
Since there are no more digits in the dividend, we add a zero to the remainder making it 140, and continue the process.

Moving on to step 8:
When dividing 140 by 78, we get 1 with a remainder of 62.
Record the quotient 1 as the next digit in the result. 
Result so far: 8598.21
Deduct 78 from 140 and we're left with 62.
Since there are no more digits in the dividend, we add a zero to the remainder making it 620, and continue the process.

Advancing to step 9:
When dividing 620 by 78, we get 7 with a remainder of 74.
Use 7 as the next digit of our solution. 
Result so far: 8598.217
If we subtract 546 from 620, we get 74.
Since there are no more digits in the dividend, we add a zero to the remainder making it 740, and continue the process.

Advancing to step 10:
78 can be fit into 740 9 times, resulting in a remainder of 38.
Write down 9 as next digit of the result. 
Result so far: 8598.2179
Subtracting 702 from 740 leaves us with 38.
Since there are no more digits in the dividend, we add a zero to the remainder making it 380, and continue the process.

Going ahead to step 11:
When dividing 380 by 78, we get 4 with a remainder of 68.
Put 4 as the next digit of the answer. 
Result so far: 8598.21794
The remainder is 68 after subtracting 312 from 380.
Since there are no more digits in the dividend, we add a zero to the remainder making it 680, and continue the process.

Moving on to step 12:
78 can be fit into 680 8 times, resulting in a remainder of 56.
Record the quotient 8 as the next digit in the result. 
Result so far: 8598.217948
If we subtract 624 from 680, we get 56.
Since there are no more digits in the dividend, we add a zero to the remainder making it 560, and continue the process.

Going ahead to step 13:
When dividing 560 by 78, we get 7 with a remainder of 14.
Record the quotient 7 as the next digit in the result. 
Result so far: 8598.2179487
Deduct 546 from 560 and we're left with 14.
Since there are no more digits in the dividend, we add a zero to the remainder making it 140, and continue the process.

On to step 14:
If we divide 140 by 78, we get 1 and a remainder of 62.
Put 1 as the next digit of the answer. 
Result so far: 8598.21794871
The remainder is 62 after subtracting 78 from 140.
Since there are no more digits in the dividend, we add a zero to the remainder making it 620, and continue the process.

Our division results in 8598.21794871 with a remaining 6.2e-08.