We look at the division of 78405 by 43 
We're looking to find how many times 43 goes into 78405.

Moving on to step 1:
The number 43 fits into 7 0 times, leaving a remainder of 7.
Use 0 as the next digit of our solution. 
Result so far: 0.0
The remainder is 7 after subtracting 0 from 7.
Grab the next digit (8) from the dividend, add it to 7, then carry on: 78 / 43

Let's proceed to step 2:
78 divided by 43 is 1 with a remainder of 35.
Use 1 as the next digit of our solution. 
Result so far: 1.0
Subtracting 43 from 78 leaves us with 35.
Take the next digit (4) from the dividend and append it to 35, then repeat: 354 / 43

Moving on to step 3:
43 goes into 354 8 times with a remainder of 10.
The next digit of our result is 8. 
Result so far: 18.0
Subtracting 344 from 354 leaves us with 10.
Fetch the next digit (0) from the dividend, attach it to 10 and continue: 100 / 43

Advancing to step 4:
100 divided by 43 is 2 with a remainder of 14.
Put 2 as the next digit of the answer. 
Result so far: 182.0
The remainder is 14 after subtracting 86 from 100.
Bring next digit (5) of the dividend behind the 14 and repeat the process: 145 / 43

On to step 5:
145 divided by 43 is 3 with a remainder of 16.
Write down 3 as next digit of the result. 
Result so far: 1823.0
Subtracting 129 from 145 leaves us with 16.
Since there are no more digits in the dividend, we add a zero to the remainder making it 160, and continue the process.

Advancing to step 6:
43 can be fit into 160 3 times, resulting in a remainder of 31.
The next digit of our result is 3. 
Result so far: 1823.3
Subtract 129 from 160 to get 31.
Since there are no more digits in the dividend, we add a zero to the remainder making it 310, and continue the process.

Advancing to step 7:
The number 43 fits into 310 7 times, leaving a remainder of 9.
Record the quotient 7 as the next digit in the result. 
Result so far: 1823.37
Deduct 301 from 310 and we're left with 9.
Since there are no more digits in the dividend, we add a zero to the remainder making it 90, and continue the process.

Going ahead to step 8:
90 divided by 43 is 2 with a remainder of 4.
Put 2 as the next digit of the answer. 
Result so far: 1823.372
Deduct 86 from 90 and we're left with 4.
Since there are no more digits in the dividend, we add a zero to the remainder making it 40, and continue the process.

Let's proceed to step 9:
If we divide 40 by 43, we get 0 and a remainder of 40.
The next digit of our result is 0. 
Result so far: 1823.372
Subtract 0 from 40 to get 40.
Since there are no more digits in the dividend, we add a zero to the remainder making it 400, and continue the process.

Let's proceed to step 10:
The number 43 fits into 400 9 times, leaving a remainder of 13.
The number 9 becomes the next digit in our result. 
Result so far: 1823.37209
Subtract 387 from 400 to get 13.
Since there are no more digits in the dividend, we add a zero to the remainder making it 130, and continue the process.

Advancing to step 11:
43 can be fit into 130 3 times, resulting in a remainder of 1.
Put 3 as the next digit of the answer. 
Result so far: 1823.372093
If we take 129 away from 130, we end up with 1.
Since there are no more digits in the dividend, we add a zero to the remainder making it 10, and continue the process.

Step 12:
43 goes into 10 0 times with a remainder of 10.
Write down 0 as next digit of the result. 
Result so far: 1823.372093
Subtracting 0 from 10 leaves us with 10.
Since there are no more digits in the dividend, we add a zero to the remainder making it 100, and continue the process.

Step 13:
If we divide 100 by 43, we get 2 and a remainder of 14.
Write down 2 as next digit of the result. 
Result so far: 1823.37209302
The remainder is 14 after subtracting 86 from 100.
Since there are no more digits in the dividend, we add a zero to the remainder making it 140, and continue the process.

After the division, we end up with 1823.37209302 and a remainder of 1.4e-08.