Let's divide 39958633 by 343
We're looking to find how many times 343 goes into 39958633.

On to step 1:
343 goes into 3 0 times with a remainder of 3.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Deduct 0 from 3 and we're left with 3.
Grab the next digit (9) from the dividend, add it to 3, then carry on: 39 / 343

Moving on to step 2:
If we divide 39 by 343, we get 0 and a remainder of 39.
Write down 0 as next digit of the result. 
Result so far: 0.0
The remainder is 39 after subtracting 0 from 39.
Take the next digit (9) from the dividend and append it to 39, then repeat: 399 / 343

Advancing to step 3:
If we divide 399 by 343, we get 1 and a remainder of 56.
The number 1 becomes the next digit in our result. 
Result so far: 1.0
Subtracting 343 from 399 leaves us with 56.
Bring next digit (5) of the dividend behind the 56 and repeat the process: 565 / 343

Going ahead to step 4:
343 can be fit into 565 1 times, resulting in a remainder of 222.
Put 1 as the next digit of the answer. 
Result so far: 11.0
If we take 343 away from 565, we end up with 222.
Bring next digit (8) of the dividend behind the 222 and repeat the process: 2228 / 343

Let's proceed to step 5:
343 can be fit into 2228 6 times, resulting in a remainder of 170.
Write down 6 as next digit of the result. 
Result so far: 116.0
If we take 2058 away from 2228, we end up with 170.
Fetch the next digit (6) from the dividend, attach it to 170 and continue: 1706 / 343

Moving on to step 6:
1706 divided by 343 is 4 with a remainder of 334.
Write down 4 as next digit of the result. 
Result so far: 1164.0
Subtracting 1372 from 1706 leaves us with 334.
Bring next digit (3) of the dividend behind the 334 and repeat the process: 3343 / 343

Moving on to step 7:
343 can be fit into 3343 9 times, resulting in a remainder of 256.
Put 9 as the next digit of the answer. 
Result so far: 11649.0
Deduct 3087 from 3343 and we're left with 256.
Append the next digit (3) from the dividend to 256 and continue with: 2563 / 343

Step 8:
343 can be fit into 2563 7 times, resulting in a remainder of 162.
Write down 7 as next digit of the result. 
Result so far: 116497.0
Deduct 2401 from 2563 and we're left with 162.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1620, and continue the process.

Moving on to step 9:
The number 343 fits into 1620 4 times, leaving a remainder of 248.
The next digit of our result is 4. 
Result so far: 116497.4
Subtract 1372 from 1620 to get 248.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2480, and continue the process.

Moving on to step 10:
2480 divided by 343 is 7 with a remainder of 79.
Use 7 as the next digit of our solution. 
Result so far: 116497.47
Deduct 2401 from 2480 and we're left with 79.
Since there are no more digits in the dividend, we add a zero to the remainder making it 790, and continue the process.

Moving on to step 11:
When dividing 790 by 343, we get 2 with a remainder of 104.
Write down 2 as next digit of the result. 
Result so far: 116497.472
Subtracting 686 from 790 leaves us with 104.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1040, and continue the process.

Advancing to step 12:
The number 343 fits into 1040 3 times, leaving a remainder of 11.
The next digit of our result is 3. 
Result so far: 116497.4723
If we subtract 1029 from 1040, we get 11.
Since there are no more digits in the dividend, we add a zero to the remainder making it 110, and continue the process.

On to step 13:
When dividing 110 by 343, we get 0 with a remainder of 110.
Record the quotient 0 as the next digit in the result. 
Result so far: 116497.4723
Subtract 0 from 110 to get 110.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1100, and continue the process.

Step 14:
343 can be fit into 1100 3 times, resulting in a remainder of 71.
Record the quotient 3 as the next digit in the result. 
Result so far: 116497.472303
Subtract 1029 from 1100 to get 71.
Since there are no more digits in the dividend, we add a zero to the remainder making it 710, and continue the process.

Moving on to step 15:
343 goes into 710 2 times with a remainder of 24.
Write down 2 as next digit of the result. 
Result so far: 116497.4723032
If we subtract 686 from 710, we get 24.
Since there are no more digits in the dividend, we add a zero to the remainder making it 240, and continue the process.

Let's proceed to step 16:
343 can be fit into 240 0 times, resulting in a remainder of 240.
Use 0 as the next digit of our solution. 
Result so far: 116497.4723032
If we subtract 0 from 240, we get 240.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2400, and continue the process.

The final outcome is 116497.4723032, with a leftover of 2.4e-07.