We're dividing 68350380 by 458 
Our goal is to divide 68350380 by 458.

Step 1:
If we divide 6 by 458, we get 0 and a remainder of 6.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Deduct 0 from 6 and we're left with 6.
Grab the next digit (8) from the dividend, add it to 6, then carry on: 68 / 458

Going ahead to step 2:
68 divided by 458 is 0 with a remainder of 68.
Write down 0 as next digit of the result. 
Result so far: 0.0
Subtracting 0 from 68 leaves us with 68.
Include the next digit (3) from the dividend after 68, then repeat: 683 / 458

On to step 3:
458 goes into 683 1 times with a remainder of 225.
The number 1 becomes the next digit in our result. 
Result so far: 1.0
If we subtract 458 from 683, we get 225.
Bring next digit (5) of the dividend behind the 225 and repeat the process: 2255 / 458

Advancing to step 4:
If we divide 2255 by 458, we get 4 and a remainder of 423.
Put 4 as the next digit of the answer. 
Result so far: 14.0
Subtract 1832 from 2255 to get 423.
Grab the next digit (0) from the dividend, add it to 423, then carry on: 4230 / 458

Going ahead to step 5:
If we divide 4230 by 458, we get 9 and a remainder of 108.
The number 9 becomes the next digit in our result. 
Result so far: 149.0
Subtract 4122 from 4230 to get 108.
Fetch the next digit (3) from the dividend, attach it to 108 and continue: 1083 / 458

Going ahead to step 6:
If we divide 1083 by 458, we get 2 and a remainder of 167.
Use 2 as the next digit of our solution. 
Result so far: 1492.0
Deduct 916 from 1083 and we're left with 167.
Include the next digit (8) from the dividend after 167, then repeat: 1678 / 458

On to step 7:
458 goes into 1678 3 times with a remainder of 304.
Use 3 as the next digit of our solution. 
Result so far: 14923.0
Deduct 1374 from 1678 and we're left with 304.
Append the next digit (0) from the dividend to 304 and continue with: 3040 / 458

Going ahead to step 8:
If we divide 3040 by 458, we get 6 and a remainder of 292.
Write down 6 as next digit of the result. 
Result so far: 149236.0
Subtracting 2748 from 3040 leaves us with 292.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2920, and continue the process.

Going ahead to step 9:
458 can be fit into 2920 6 times, resulting in a remainder of 172.
The next digit of our result is 6. 
Result so far: 149236.6
If we subtract 2748 from 2920, we get 172.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1720, and continue the process.

Let's proceed to step 10:
When dividing 1720 by 458, we get 3 with a remainder of 346.
Write down 3 as next digit of the result. 
Result so far: 149236.63
Subtract 1374 from 1720 to get 346.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3460, and continue the process.

Advancing to step 11:
The number 458 fits into 3460 7 times, leaving a remainder of 254.
Use 7 as the next digit of our solution. 
Result so far: 149236.637
Deduct 3206 from 3460 and we're left with 254.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2540, and continue the process.

Going ahead to step 12:
The number 458 fits into 2540 5 times, leaving a remainder of 250.
The next digit of our result is 5. 
Result so far: 149236.6375
Subtracting 2290 from 2540 leaves us with 250.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2500, and continue the process.

Let's proceed to step 13:
458 goes into 2500 5 times with a remainder of 210.
Put 5 as the next digit of the answer. 
Result so far: 149236.63755
Subtract 2290 from 2500 to get 210.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2100, and continue the process.

The final outcome is 149236.63755, with a leftover of 0.00021.