43459803 ÷ 145 
We want to figure out the number of times 43459803 can be divided by 145.

Let's proceed to step 1:
When dividing 4 by 145, we get 0 with a remainder of 4.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
If we take 0 away from 4, we end up with 4.
Take the next digit (3) from the dividend and append it to 4, then repeat: 43 / 145

Moving on to step 2:
The number 145 fits into 43 0 times, leaving a remainder of 43.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Subtracting 0 from 43 leaves us with 43.
Fetch the next digit (4) from the dividend, attach it to 43 and continue: 434 / 145

Let's proceed to step 3:
When dividing 434 by 145, we get 2 with a remainder of 144.
Record the quotient 2 as the next digit in the result. 
Result so far: 2.0
Subtracting 290 from 434 leaves us with 144.
Take the next digit (5) from the dividend and append it to 144, then repeat: 1445 / 145

On to step 4:
145 goes into 1445 9 times with a remainder of 140.
Put 9 as the next digit of the answer. 
Result so far: 29.0
Subtracting 1305 from 1445 leaves us with 140.
Include the next digit (9) from the dividend after 140, then repeat: 1409 / 145

Moving on to step 5:
The number 145 fits into 1409 9 times, leaving a remainder of 104.
The next digit of our result is 9. 
Result so far: 299.0
Subtracting 1305 from 1409 leaves us with 104.
Fetch the next digit (8) from the dividend, attach it to 104 and continue: 1048 / 145

Let's proceed to step 6:
1048 divided by 145 is 7 with a remainder of 33.
Record the quotient 7 as the next digit in the result. 
Result so far: 2997.0
The remainder is 33 after subtracting 1015 from 1048.
Take the next digit (0) from the dividend and append it to 33, then repeat: 330 / 145

Step 7:
145 goes into 330 2 times with a remainder of 40.
The number 2 becomes the next digit in our result. 
Result so far: 29972.0
Deduct 290 from 330 and we're left with 40.
Grab the next digit (3) from the dividend, add it to 40, then carry on: 403 / 145

Let's proceed to step 8:
The number 145 fits into 403 2 times, leaving a remainder of 113.
Use 2 as the next digit of our solution. 
Result so far: 299722.0
Subtract 290 from 403 to get 113.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1130, and continue the process.

Advancing to step 9:
1130 divided by 145 is 7 with a remainder of 115.
Use 7 as the next digit of our solution. 
Result so far: 299722.7
If we subtract 1015 from 1130, we get 115.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1150, and continue the process.

Going ahead to step 10:
1150 divided by 145 is 7 with a remainder of 135.
Record the quotient 7 as the next digit in the result. 
Result so far: 299722.77
Subtract 1015 from 1150 to get 135.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1350, and continue the process.

The final outcome is 299722.77, with a leftover of 0.135.