680454 ÷ 43 
Let's see how many times 43 fits into 680454.

Step 1:
43 can be fit into 6 0 times, resulting in 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 / 43

Going ahead to step 2:
43 goes into 68 1 times with a remainder of 25.
Put 1 as the next digit of the answer. 
Result so far: 1.0
If we subtract 43 from 68, we get 25.
Include the next digit (0) from the dividend after 25, then repeat: 250 / 43

Let's proceed to step 3:
43 goes into 250 5 times with a remainder of 35.
The number 5 becomes the next digit in our result. 
Result so far: 15.0
Deduct 215 from 250 and we're left with 35.
Append the next digit (4) from the dividend to 35 and continue with: 354 / 43

Advancing to step 4:
43 can be fit into 354 8 times, resulting in a remainder of 10.
Put 8 as the next digit of the answer. 
Result so far: 158.0
Subtract 344 from 354 to get 10.
Take the next digit (5) from the dividend and append it to 10, then repeat: 105 / 43

Going ahead to step 5:
When dividing 105 by 43, we get 2 with a remainder of 19.
Put 2 as the next digit of the answer. 
Result so far: 1582.0
Subtract 86 from 105 to get 19.
Grab the next digit (4) from the dividend, add it to 19, then carry on: 194 / 43

Advancing to step 6:
When dividing 194 by 43, we get 4 with a remainder of 22.
The number 4 becomes the next digit in our result. 
Result so far: 15824.0
The remainder is 22 after subtracting 172 from 194.
Since there are no more digits in the dividend, we add a zero to the remainder making it 220, and continue the process.

On to step 7:
The number 43 fits into 220 5 times, leaving a remainder of 5.
The number 5 becomes the next digit in our result. 
Result so far: 15824.5
The remainder is 5 after subtracting 215 from 220.
Since there are no more digits in the dividend, we add a zero to the remainder making it 50, and continue the process.

Let's proceed to step 8:
The number 43 fits into 50 1 times, leaving a remainder of 7.
Put 1 as the next digit of the answer. 
Result so far: 15824.51
Subtract 43 from 50 to get 7.
Since there are no more digits in the dividend, we add a zero to the remainder making it 70, and continue the process.

On to step 9:
If we divide 70 by 43, we get 1 and a remainder of 27.
Write down 1 as next digit of the result. 
Result so far: 15824.511
If we subtract 43 from 70, we get 27.
Since there are no more digits in the dividend, we add a zero to the remainder making it 270, and continue the process.

The quotient of the division is 15824.511, and the remainder is 0.0027.