34057421 divided by 343 
We want to divide 34057421 by 343.

Step 1:
343 goes into 3 0 times with a remainder of 3.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Subtract 0 from 3 to get 3.
Bring next digit (4) of the dividend behind the 3 and repeat the process: 34 / 343

Advancing to step 2:
If we divide 34 by 343, we get 0 and a remainder of 34.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Subtract 0 from 34 to get 34.
Fetch the next digit (0) from the dividend, attach it to 34 and continue: 340 / 343

Step 3:
343 can be fit into 340 0 times, resulting in a remainder of 340.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
If we subtract 0 from 340, we get 340.
Append the next digit (5) from the dividend to 340 and continue with: 3405 / 343

Moving on to step 4:
When dividing 3405 by 343, we get 9 with a remainder of 318.
The next digit of our result is 9. 
Result so far: 9.0
Subtracting 3087 from 3405 leaves us with 318.
Take the next digit (7) from the dividend and append it to 318, then repeat: 3187 / 343

Let's proceed to step 5:
When dividing 3187 by 343, we get 9 with a remainder of 100.
Record the quotient 9 as the next digit in the result. 
Result so far: 99.0
The remainder is 100 after subtracting 3087 from 3187.
Append the next digit (4) from the dividend to 100 and continue with: 1004 / 343

Let's proceed to step 6:
When dividing 1004 by 343, we get 2 with a remainder of 318.
The number 2 becomes the next digit in our result. 
Result so far: 992.0
The remainder is 318 after subtracting 686 from 1004.
Include the next digit (2) from the dividend after 318, then repeat: 3182 / 343

Let's proceed to step 7:
The number 343 fits into 3182 9 times, leaving a remainder of 95.
Write down 9 as next digit of the result. 
Result so far: 9929.0
Subtracting 3087 from 3182 leaves us with 95.
Bring next digit (1) of the dividend behind the 95 and repeat the process: 951 / 343

On to step 8:
The number 343 fits into 951 2 times, leaving a remainder of 265.
The next digit of our result is 2. 
Result so far: 99292.0
Subtract 686 from 951 to get 265.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2650, and continue the process.

Advancing to step 9:
When dividing 2650 by 343, we get 7 with a remainder of 249.
The next digit of our result is 7. 
Result so far: 99292.7
If we take 2401 away from 2650, we end up with 249.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2490, and continue the process.

Moving on to step 10:
343 goes into 2490 7 times with a remainder of 89.
The next digit of our result is 7. 
Result so far: 99292.77
If we take 2401 away from 2490, we end up with 89.
Since there are no more digits in the dividend, we add a zero to the remainder making it 890, and continue the process.

The final result is 99292.77 with a remainder of 0.089.