39486567 ÷ 20 
Our goal is to divide 39486567 by 20.

Going ahead to step 1:
20 goes into 3 0 times with a remainder of 3.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Subtract 0 from 3 to get 3.
Bring next digit (9) of the dividend behind the 3 and repeat the process: 39 / 20

On to step 2:
39 divided by 20 is 1 with a remainder of 19.
Use 1 as the next digit of our solution. 
Result so far: 1.0
Subtract 20 from 39 to get 19.
Bring next digit (4) of the dividend behind the 19 and repeat the process: 194 / 20

Step 3:
The number 20 fits into 194 9 times, leaving a remainder of 14.
Record the quotient 9 as the next digit in the result. 
Result so far: 19.0
Subtracting 180 from 194 leaves us with 14.
Append the next digit (8) from the dividend to 14 and continue with: 148 / 20

Advancing to step 4:
148 divided by 20 is 7 with a remainder of 8.
The number 7 becomes the next digit in our result. 
Result so far: 197.0
Subtracting 140 from 148 leaves us with 8.
Append the next digit (6) from the dividend to 8 and continue with: 86 / 20

Let's proceed to step 5:
86 divided by 20 is 4 with a remainder of 6.
Write down 4 as next digit of the result. 
Result so far: 1974.0
The remainder is 6 after subtracting 80 from 86.
Take the next digit (5) from the dividend and append it to 6, then repeat: 65 / 20

Going ahead to step 6:
20 goes into 65 3 times with a remainder of 5.
Put 3 as the next digit of the answer. 
Result so far: 19743.0
Subtract 60 from 65 to get 5.
Append the next digit (6) from the dividend to 5 and continue with: 56 / 20

Going ahead to step 7:
If we divide 56 by 20, we get 2 and a remainder of 16.
Write down 2 as next digit of the result. 
Result so far: 197432.0
If we subtract 40 from 56, we get 16.
Fetch the next digit (7) from the dividend, attach it to 16 and continue: 167 / 20

Moving on to step 8:
The number 20 fits into 167 8 times, leaving a remainder of 7.
Put 8 as the next digit of the answer. 
Result so far: 1974328.0
Subtracting 160 from 167 leaves us with 7.
Since there are no more digits in the dividend, we add a zero to the remainder making it 70, and continue the process.

Step 9:
70 divided by 20 is 3 with a remainder of 10.
Record the quotient 3 as the next digit in the result. 
Result so far: 1974328.3
Subtract 60 from 70 to get 10.
Since there are no more digits in the dividend, we add a zero to the remainder making it 100, and continue the process.

Going ahead to step 10:
When dividing 100 by 20, we get 5 with a remainder of 0.
Use 5 as the next digit of our solution. 
Result so far: 1974328.35
If we subtract 100 from 100, 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.

Advancing to step 11:
When dividing 0 by 20, we get 0 with a remainder of 0.
The number 0 becomes the next digit in our result. 
Result so far: 1974328.35
Subtract 0 from 0 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.

Moving on to step 12:
0 divided by 20 is 0 with a remainder of 0.
Use 0 as the next digit of our solution. 
Result so far: 1974328.35
If we take 0 away from 0, we end up with 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 1974328.35, with a leftover of 0.0.