34458358 divided by 256 
We're looking to find how many times 256 goes into 34458358.

On to step 1:
3 divided by 256 is 0 with a remainder of 3.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
The remainder is 3 after subtracting 0 from 3.
Fetch the next digit (4) from the dividend, attach it to 3 and continue: 34 / 256

Moving on to step 2:
When dividing 34 by 256, we get 0 with a remainder of 34.
The next digit of our result is 0. 
Result so far: 0.0
Subtract 0 from 34 to get 34.
Append the next digit (4) from the dividend to 34 and continue with: 344 / 256

Advancing to step 3:
344 divided by 256 is 1 with a remainder of 88.
The number 1 becomes the next digit in our result. 
Result so far: 1.0
If we subtract 256 from 344, we get 88.
Take the next digit (5) from the dividend and append it to 88, then repeat: 885 / 256

Moving on to step 4:
If we divide 885 by 256, we get 3 and a remainder of 117.
The number 3 becomes the next digit in our result. 
Result so far: 13.0
Deduct 768 from 885 and we're left with 117.
Grab the next digit (8) from the dividend, add it to 117, then carry on: 1178 / 256

Advancing to step 5:
1178 divided by 256 is 4 with a remainder of 154.
Put 4 as the next digit of the answer. 
Result so far: 134.0
Deduct 1024 from 1178 and we're left with 154.
Bring next digit (3) of the dividend behind the 154 and repeat the process: 1543 / 256

Moving on to step 6:
256 goes into 1543 6 times with a remainder of 7.
The next digit of our result is 6. 
Result so far: 1346.0
The remainder is 7 after subtracting 1536 from 1543.
Fetch the next digit (5) from the dividend, attach it to 7 and continue: 75 / 256

Step 7:
When dividing 75 by 256, we get 0 with a remainder of 75.
The number 0 becomes the next digit in our result. 
Result so far: 13460.0
The remainder is 75 after subtracting 0 from 75.
Include the next digit (8) from the dividend after 75, then repeat: 758 / 256

On to step 8:
758 divided by 256 is 2 with a remainder of 246.
The next digit of our result is 2. 
Result so far: 134602.0
Subtracting 512 from 758 leaves us with 246.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2460, and continue the process.

Advancing to step 9:
If we divide 2460 by 256, we get 9 and a remainder of 156.
Put 9 as the next digit of the answer. 
Result so far: 134602.9
Deduct 2304 from 2460 and we're left with 156.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1560, and continue the process.

Advancing to step 10:
If we divide 1560 by 256, we get 6 and a remainder of 24.
Use 6 as the next digit of our solution. 
Result so far: 134602.96
Subtracting 1536 from 1560 leaves us with 24.
Since there are no more digits in the dividend, we add a zero to the remainder making it 240, and continue the process.

Advancing to step 11:
When dividing 240 by 256, we get 0 with a remainder of 240.
The next digit of our result is 0. 
Result so far: 134602.96
Subtract 0 from 240 to 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.

Moving on to step 12:
When dividing 2400 by 256, we get 9 with a remainder of 96.
Record the quotient 9 as the next digit in the result. 
Result so far: 134602.9609
Deduct 2304 from 2400 and we're left with 96.
Since there are no more digits in the dividend, we add a zero to the remainder making it 960, and continue the process.

Moving on to step 13:
960 divided by 256 is 3 with a remainder of 192.
Put 3 as the next digit of the answer. 
Result so far: 134602.96093
The remainder is 192 after subtracting 768 from 960.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1920, and continue the process.

Step 14:
The number 256 fits into 1920 7 times, leaving a remainder of 128.
The number 7 becomes the next digit in our result. 
Result so far: 134602.960937
Subtracting 1792 from 1920 leaves us with 128.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1280, and continue the process.

Let's proceed to step 15:
1280 divided by 256 is 5 with a remainder of 0.
Write down 5 as next digit of the result. 
Result so far: 134602.9609375
Subtract 1280 from 1280 to get 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

Moving on to step 16:
256 goes into 0 0 times with a remainder of 0.
Record the quotient 0 as the next digit in the result. 
Result so far: 134602.9609375
If we take 0 away from 0, we end up with 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

After the division, we end up with 134602.9609375 and a remainder of 0.0.