673574 ÷ 20 
We're looking to find how many times 20 goes into 673574.

On to 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
Deduct 0 from 6 and we're left with 6.
Grab the next digit (7) from the dividend, add it to 6, then carry on: 67 / 20

Going ahead to step 2:
If we divide 67 by 20, we get 3 and a remainder of 7.
Put 3 as the next digit of the answer. 
Result so far: 3.0
Subtract 60 from 67 to get 7.
Grab the next digit (3) from the dividend, add it to 7, then carry on: 73 / 20

Let's proceed to step 3:
20 can be fit into 73 3 times, resulting in a remainder of 13.
The number 3 becomes the next digit in our result. 
Result so far: 33.0
If we subtract 60 from 73, we get 13.
Append the next digit (5) from the dividend to 13 and continue with: 135 / 20

Advancing to step 4:
135 divided by 20 is 6 with a remainder of 15.
Put 6 as the next digit of the answer. 
Result so far: 336.0
Subtracting 120 from 135 leaves us with 15.
Bring next digit (7) of the dividend behind the 15 and repeat the process: 157 / 20

Step 5:
When dividing 157 by 20, we get 7 with a remainder of 17.
Use 7 as the next digit of our solution. 
Result so far: 3367.0
If we take 140 away from 157, we end up with 17.
Append the next digit (4) from the dividend to 17 and continue with: 174 / 20

Step 6:
20 can be fit into 174 8 times, resulting in a remainder of 14.
Put 8 as the next digit of the answer. 
Result so far: 33678.0
If we take 160 away from 174, we end up with 14.
Since there are no more digits in the dividend, we add a zero to the remainder making it 140, and continue the process.

On to step 7:
20 can be fit into 140 7 times, resulting in a remainder of 0.
The next digit of our result is 7. 
Result so far: 33678.7
Subtract 140 from 140 to 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.

Advancing to step 8:
0 divided by 20 is 0 with a remainder of 0.
Record the quotient 0 as the next digit in the result. 
Result so far: 33678.7
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 9:
20 can be fit into 0 0 times, resulting in a remainder of 0.
Record the quotient 0 as the next digit in the result. 
Result so far: 33678.7
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.

The final outcome is 33678.7, with a leftover of 0.0.