67458 ÷ 20 
We're looking to find how many times 20 goes into 67458.

Step 1:
If we divide 6 by 20, we get 0 and a remainder of 6.
Put 0 as the next digit of the answer. 
Result so far: 0.0
If we subtract 0 from 6, we get 6.
Append the next digit (7) from the dividend to 6 and continue with: 67 / 20

Advancing to step 2:
67 divided by 20 is 3 with a remainder of 7.
The next digit of our result is 3. 
Result so far: 3.0
The remainder is 7 after subtracting 60 from 67.
Bring next digit (4) of the dividend behind the 7 and repeat the process: 74 / 20

On to step 3:
20 goes into 74 3 times with a remainder of 14.
Put 3 as the next digit of the answer. 
Result so far: 33.0
If we subtract 60 from 74, we get 14.
Bring next digit (5) of the dividend behind the 14 and repeat the process: 145 / 20

Going ahead to step 4:
145 divided by 20 is 7 with a remainder of 5.
Record the quotient 7 as the next digit in the result. 
Result so far: 337.0
Subtract 140 from 145 to get 5.
Include the next digit (8) from the dividend after 5, then repeat: 58 / 20

Moving on to step 5:
58 divided by 20 is 2 with a remainder of 18.
Use 2 as the next digit of our solution. 
Result so far: 3372.0
The remainder is 18 after subtracting 40 from 58.
Since there are no more digits in the dividend, we add a zero to the remainder making it 180, and continue the process.

Moving on to step 6:
20 goes into 180 9 times with a remainder of 0.
Use 9 as the next digit of our solution. 
Result so far: 3372.9
The remainder is 0 after subtracting 180 from 180.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

Step 7:
If we divide 0 by 20, we get 0 and a remainder of 0.
Put 0 as the next digit of the answer. 
Result so far: 3372.9
The remainder is 0 after subtracting 0 from 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

On to step 8:
20 can be fit into 0 0 times, resulting in a remainder of 0.
Use 0 as the next digit of our solution. 
Result so far: 3372.9
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.

In conclusion, the division gives 3372.9 with a balance of 0.0.