67661879 ÷ 669 
We want to figure out the number of times 67661879 can be divided by 669.

Step 1:
6 divided by 669 is 0 with a remainder of 6.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Subtracting 0 from 6 leaves us with 6.
Fetch the next digit (7) from the dividend, attach it to 6 and continue: 67 / 669

Advancing to step 2:
The number 669 fits into 67 0 times, leaving a remainder of 67.
Put 0 as the next digit of the answer. 
Result so far: 0.0
If we subtract 0 from 67, we get 67.
Append the next digit (6) from the dividend to 67 and continue with: 676 / 669

Advancing to step 3:
If we divide 676 by 669, we get 1 and a remainder of 7.
Put 1 as the next digit of the answer. 
Result so far: 1.0
Subtracting 669 from 676 leaves us with 7.
Bring next digit (6) of the dividend behind the 7 and repeat the process: 76 / 669

Going ahead to step 4:
76 divided by 669 is 0 with a remainder of 76.
Put 0 as the next digit of the answer. 
Result so far: 10.0
The remainder is 76 after subtracting 0 from 76.
Grab the next digit (1) from the dividend, add it to 76, then carry on: 761 / 669

Advancing to step 5:
When dividing 761 by 669, we get 1 with a remainder of 92.
Use 1 as the next digit of our solution. 
Result so far: 101.0
If we take 669 away from 761, we end up with 92.
Include the next digit (8) from the dividend after 92, then repeat: 928 / 669

On to step 6:
The number 669 fits into 928 1 times, leaving a remainder of 259.
The number 1 becomes the next digit in our result. 
Result so far: 1011.0
Deduct 669 from 928 and we're left with 259.
Append the next digit (7) from the dividend to 259 and continue with: 2597 / 669

Advancing to step 7:
The number 669 fits into 2597 3 times, leaving a remainder of 590.
Put 3 as the next digit of the answer. 
Result so far: 10113.0
Subtracting 2007 from 2597 leaves us with 590.
Append the next digit (9) from the dividend to 590 and continue with: 5909 / 669

Let's proceed to step 8:
When dividing 5909 by 669, we get 8 with a remainder of 557.
Write down 8 as next digit of the result. 
Result so far: 101138.0
If we subtract 5352 from 5909, we get 557.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5570, and continue the process.

Let's proceed to step 9:
If we divide 5570 by 669, we get 8 and a remainder of 218.
Write down 8 as next digit of the result. 
Result so far: 101138.8
If we take 5352 away from 5570, we end up with 218.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2180, and continue the process.

Going ahead to step 10:
If we divide 2180 by 669, we get 3 and a remainder of 173.
Use 3 as the next digit of our solution. 
Result so far: 101138.83
Deduct 2007 from 2180 and we're left with 173.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1730, and continue the process.

Moving on to step 11:
The number 669 fits into 1730 2 times, leaving a remainder of 392.
The next digit of our result is 2. 
Result so far: 101138.832
Subtracting 1338 from 1730 leaves us with 392.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3920, and continue the process.

Moving on to step 12:
If we divide 3920 by 669, we get 5 and a remainder of 575.
Put 5 as the next digit of the answer. 
Result so far: 101138.8325
The remainder is 575 after subtracting 3345 from 3920.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5750, and continue the process.

On to step 13:
When dividing 5750 by 669, we get 8 with a remainder of 398.
Write down 8 as next digit of the result. 
Result so far: 101138.83258
If we take 5352 away from 5750, we end up with 398.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3980, and continue the process.

Going ahead to step 14:
3980 divided by 669 is 5 with a remainder of 635.
The next digit of our result is 5. 
Result so far: 101138.832585
Deduct 3345 from 3980 and we're left with 635.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6350, and continue the process.

Advancing to step 15:
The number 669 fits into 6350 9 times, leaving a remainder of 329.
Use 9 as the next digit of our solution. 
Result so far: 101138.8325859
Subtract 6021 from 6350 to get 329.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3290, and continue the process.

Going ahead to step 16:
3290 divided by 669 is 4 with a remainder of 614.
Use 4 as the next digit of our solution. 
Result so far: 101138.83258594
The remainder is 614 after subtracting 2676 from 3290.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6140, and continue the process.

In conclusion, the division gives 101138.83258594 with a balance of 6.14e-07.