66721754 divided by 343 
Let's see how many times 343 fits into 66721754.

Step 1:
6 divided by 343 is 0 with a remainder of 6.
Write down 0 as next digit of the result. 
Result so far: 0.0
The remainder is 6 after subtracting 0 from 6.
Append the next digit (6) from the dividend to 6 and continue with: 66 / 343

On to step 2:
343 goes into 66 0 times with a remainder of 66.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Subtract 0 from 66 to get 66.
Append the next digit (7) from the dividend to 66 and continue with: 667 / 343

On to step 3:
When dividing 667 by 343, we get 1 with a remainder of 324.
Use 1 as the next digit of our solution. 
Result so far: 1.0
If we subtract 343 from 667, we get 324.
Include the next digit (2) from the dividend after 324, then repeat: 3242 / 343

On to step 4:
When dividing 3242 by 343, we get 9 with a remainder of 155.
The number 9 becomes the next digit in our result. 
Result so far: 19.0
If we take 3087 away from 3242, we end up with 155.
Bring next digit (1) of the dividend behind the 155 and repeat the process: 1551 / 343

Step 5:
1551 divided by 343 is 4 with a remainder of 179.
Write down 4 as next digit of the result. 
Result so far: 194.0
The remainder is 179 after subtracting 1372 from 1551.
Bring next digit (7) of the dividend behind the 179 and repeat the process: 1797 / 343

Step 6:
343 can be fit into 1797 5 times, resulting in a remainder of 82.
Put 5 as the next digit of the answer. 
Result so far: 1945.0
Subtract 1715 from 1797 to get 82.
Append the next digit (5) from the dividend to 82 and continue with: 825 / 343

Let's proceed to step 7:
825 divided by 343 is 2 with a remainder of 139.
Put 2 as the next digit of the answer. 
Result so far: 19452.0
Deduct 686 from 825 and we're left with 139.
Include the next digit (4) from the dividend after 139, then repeat: 1394 / 343

On to step 8:
If we divide 1394 by 343, we get 4 and a remainder of 22.
Write down 4 as next digit of the result. 
Result so far: 194524.0
Deduct 1372 from 1394 and we're left with 22.
Since there are no more digits in the dividend, we add a zero to the remainder making it 220, and continue the process.

Moving on to step 9:
If we divide 220 by 343, we get 0 and a remainder of 220.
Record the quotient 0 as the next digit in the result. 
Result so far: 194524.0
If we take 0 away from 220, we end up with 220.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2200, and continue the process.

Advancing to step 10:
2200 divided by 343 is 6 with a remainder of 142.
The number 6 becomes the next digit in our result. 
Result so far: 194524.06
The remainder is 142 after subtracting 2058 from 2200.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1420, and continue the process.

Moving on to step 11:
343 goes into 1420 4 times with a remainder of 48.
Write down 4 as next digit of the result. 
Result so far: 194524.064
If we subtract 1372 from 1420, we 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.

Advancing to step 12:
480 divided by 343 is 1 with a remainder of 137.
Use 1 as the next digit of our solution. 
Result so far: 194524.0641
Subtracting 343 from 480 leaves us with 137.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1370, and continue the process.

Going ahead to step 13:
343 goes into 1370 3 times with a remainder of 341.
The number 3 becomes the next digit in our result. 
Result so far: 194524.06413
If we subtract 1029 from 1370, we get 341.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3410, and continue the process.

Let's proceed to step 14:
If we divide 3410 by 343, we get 9 and a remainder of 323.
Write down 9 as next digit of the result. 
Result so far: 194524.064139
The remainder is 323 after subtracting 3087 from 3410.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3230, and continue the process.

Going ahead to step 15:
When dividing 3230 by 343, we get 9 with a remainder of 143.
Write down 9 as next digit of the result. 
Result so far: 194524.0641399
Deduct 3087 from 3230 and we're left with 143.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1430, and continue the process.

The quotient of the division is 194524.0641399, and the remainder is 1.43e-06.