We're dividing 68530306 by 145 
We want to figure out the number of times 68530306 can be divided by 145.

On to step 1:
6 divided by 145 is 0 with a remainder of 6.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Subtract 0 from 6 to get 6.
Append the next digit (8) from the dividend to 6 and continue with: 68 / 145

On to step 2:
When dividing 68 by 145, we get 0 with a remainder of 68.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
If we subtract 0 from 68, we get 68.
Take the next digit (5) from the dividend and append it to 68, then repeat: 685 / 145

On to step 3:
685 divided by 145 is 4 with a remainder of 105.
Write down 4 as next digit of the result. 
Result so far: 4.0
If we take 580 away from 685, we end up with 105.
Grab the next digit (3) from the dividend, add it to 105, then carry on: 1053 / 145

Advancing to step 4:
When dividing 1053 by 145, we get 7 with a remainder of 38.
Write down 7 as next digit of the result. 
Result so far: 47.0
Subtract 1015 from 1053 to get 38.
Take the next digit (0) from the dividend and append it to 38, then repeat: 380 / 145

Let's proceed to step 5:
380 divided by 145 is 2 with a remainder of 90.
The number 2 becomes the next digit in our result. 
Result so far: 472.0
Subtract 290 from 380 to get 90.
Fetch the next digit (3) from the dividend, attach it to 90 and continue: 903 / 145

Advancing to step 6:
903 divided by 145 is 6 with a remainder of 33.
The number 6 becomes the next digit in our result. 
Result so far: 4726.0
Subtracting 870 from 903 leaves us with 33.
Take the next digit (0) from the dividend and append it to 33, then repeat: 330 / 145

Going ahead to step 7:
330 divided by 145 is 2 with a remainder of 40.
Put 2 as the next digit of the answer. 
Result so far: 47262.0
The remainder is 40 after subtracting 290 from 330.
Bring next digit (6) of the dividend behind the 40 and repeat the process: 406 / 145

Advancing to step 8:
145 goes into 406 2 times with a remainder of 116.
Use 2 as the next digit of our solution. 
Result so far: 472622.0
Deduct 290 from 406 and we're left with 116.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1160, and continue the process.

On to step 9:
1160 divided by 145 is 8 with a remainder of 0.
The number 8 becomes the next digit in our result. 
Result so far: 472622.8
If we take 1160 away from 1160, 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.

Advancing to step 10:
When dividing 0 by 145, we get 0 with a remainder of 0.
The number 0 becomes the next digit in our result. 
Result so far: 472622.8
If we subtract 0 from 0, we 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.

Step 11:
The number 145 fits into 0 0 times, leaving a remainder of 0.
Write down 0 as next digit of the result. 
Result so far: 472622.8
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 472622.8 and a remainder of 0.0.