67940012 divided by 643 
We want to figure out the number of times 67940012 can be divided by 643.

Moving on to step 1:
643 goes into 6 0 times with a remainder of 6.
Write down 0 as next digit of the result. 
Result so far: 0.0
Deduct 0 from 6 and we're left with 6.
Include the next digit (7) from the dividend after 6, then repeat: 67 / 643

On to step 2:
67 divided by 643 is 0 with a remainder of 67.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Deduct 0 from 67 and we're left with 67.
Append the next digit (9) from the dividend to 67 and continue with: 679 / 643

Advancing to step 3:
The number 643 fits into 679 1 times, leaving a remainder of 36.
Use 1 as the next digit of our solution. 
Result so far: 1.0
The remainder is 36 after subtracting 643 from 679.
Bring next digit (4) of the dividend behind the 36 and repeat the process: 364 / 643

On to step 4:
If we divide 364 by 643, we get 0 and a remainder of 364.
Write down 0 as next digit of the result. 
Result so far: 10.0
If we subtract 0 from 364, we get 364.
Include the next digit (0) from the dividend after 364, then repeat: 3640 / 643

Going ahead to step 5:
If we divide 3640 by 643, we get 5 and a remainder of 425.
The next digit of our result is 5. 
Result so far: 105.0
The remainder is 425 after subtracting 3215 from 3640.
Bring next digit (0) of the dividend behind the 425 and repeat the process: 4250 / 643

Step 6:
The number 643 fits into 4250 6 times, leaving a remainder of 392.
The next digit of our result is 6. 
Result so far: 1056.0
Subtracting 3858 from 4250 leaves us with 392.
Bring next digit (1) of the dividend behind the 392 and repeat the process: 3921 / 643

Let's proceed to step 7:
3921 divided by 643 is 6 with a remainder of 63.
Use 6 as the next digit of our solution. 
Result so far: 10566.0
If we take 3858 away from 3921, we end up with 63.
Append the next digit (2) from the dividend to 63 and continue with: 632 / 643

Let's proceed to step 8:
643 can be fit into 632 0 times, resulting in a remainder of 632.
The next digit of our result is 0. 
Result so far: 105660.0
Deduct 0 from 632 and we're left with 632.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6320, and continue the process.

Going ahead to step 9:
If we divide 6320 by 643, we get 9 and a remainder of 533.
Use 9 as the next digit of our solution. 
Result so far: 105660.9
If we subtract 5787 from 6320, we get 533.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5330, and continue the process.

Advancing to step 10:
If we divide 5330 by 643, we get 8 and a remainder of 186.
Write down 8 as next digit of the result. 
Result so far: 105660.98
Subtract 5144 from 5330 to get 186.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1860, and continue the process.

Going ahead to step 11:
643 can be fit into 1860 2 times, resulting in a remainder of 574.
The next digit of our result is 2. 
Result so far: 105660.982
Deduct 1286 from 1860 and we're left with 574.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5740, and continue the process.

Advancing to step 12:
When dividing 5740 by 643, we get 8 with a remainder of 596.
The next digit of our result is 8. 
Result so far: 105660.9828
If we take 5144 away from 5740, we end up with 596.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5960, and continue the process.

Step 13:
643 goes into 5960 9 times with a remainder of 173.
Write down 9 as next digit of the result. 
Result so far: 105660.98289
The remainder is 173 after subtracting 5787 from 5960.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1730, and continue the process.

Going ahead to step 14:
643 can be fit into 1730 2 times, resulting in a remainder of 444.
The next digit of our result is 2. 
Result so far: 105660.982892
If we take 1286 away from 1730, we end up with 444.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4440, and continue the process.

On to step 15:
When dividing 4440 by 643, we get 6 with a remainder of 582.
Record the quotient 6 as the next digit in the result. 
Result so far: 105660.9828926
The remainder is 582 after subtracting 3858 from 4440.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5820, and continue the process.

Let's proceed to step 16:
643 goes into 5820 9 times with a remainder of 33.
The number 9 becomes the next digit in our result. 
Result so far: 105660.98289269
Subtracting 5787 from 5820 leaves us with 33.
Since there are no more digits in the dividend, we add a zero to the remainder making it 330, and continue the process.

After the division, we end up with 105660.98289269 and a remainder of 3.3e-08.