We look at the division of 387145 by 81 
Let's see how many times 81 fits into 387145.

Moving on to step 1:
81 goes into 3 0 times with a remainder of 3.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Deduct 0 from 3 and we're left with 3.
Append the next digit (8) from the dividend to 3 and continue with: 38 / 81

Moving on to step 2:
81 goes into 38 0 times with a remainder of 38.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Subtract 0 from 38 to get 38.
Include the next digit (7) from the dividend after 38, then repeat: 387 / 81

Let's proceed to step 3:
81 goes into 387 4 times with a remainder of 63.
The number 4 becomes the next digit in our result. 
Result so far: 4.0
If we take 324 away from 387, we end up with 63.
Take the next digit (1) from the dividend and append it to 63, then repeat: 631 / 81

Step 4:
631 divided by 81 is 7 with a remainder of 64.
Record the quotient 7 as the next digit in the result. 
Result so far: 47.0
Subtract 567 from 631 to get 64.
Append the next digit (4) from the dividend to 64 and continue with: 644 / 81

Moving on to step 5:
The number 81 fits into 644 7 times, leaving a remainder of 77.
Put 7 as the next digit of the answer. 
Result so far: 477.0
The remainder is 77 after subtracting 567 from 644.
Take the next digit (5) from the dividend and append it to 77, then repeat: 775 / 81

Let's proceed to step 6:
The number 81 fits into 775 9 times, leaving a remainder of 46.
Use 9 as the next digit of our solution. 
Result so far: 4779.0
If we take 729 away from 775, we end up with 46.
Since there are no more digits in the dividend, we add a zero to the remainder making it 460, and continue the process.

Let's proceed to step 7:
81 goes into 460 5 times with a remainder of 55.
Put 5 as the next digit of the answer. 
Result so far: 4779.5
Deduct 405 from 460 and we're left with 55.
Since there are no more digits in the dividend, we add a zero to the remainder making it 550, and continue the process.

Moving on to step 8:
81 can be fit into 550 6 times, resulting in a remainder of 64.
Write down 6 as next digit of the result. 
Result so far: 4779.56
If we take 486 away from 550, we end up with 64.
Since there are no more digits in the dividend, we add a zero to the remainder making it 640, and continue the process.

Step 9:
If we divide 640 by 81, we get 7 and a remainder of 73.
Record the quotient 7 as the next digit in the result. 
Result so far: 4779.567
Subtracting 567 from 640 leaves us with 73.
Since there are no more digits in the dividend, we add a zero to the remainder making it 730, and continue the process.

Step 10:
The number 81 fits into 730 9 times, leaving a remainder of 1.
The next digit of our result is 9. 
Result so far: 4779.5679
If we subtract 729 from 730, we get 1.
Since there are no more digits in the dividend, we add a zero to the remainder making it 10, and continue the process.

Advancing to step 11:
81 goes into 10 0 times with a remainder of 10.
Put 0 as the next digit of the answer. 
Result so far: 4779.5679
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.

Advancing to step 12:
If we divide 100 by 81, we get 1 and a remainder of 19.
The next digit of our result is 1. 
Result so far: 4779.567901
If we subtract 81 from 100, we get 19.
Since there are no more digits in the dividend, we add a zero to the remainder making it 190, and continue the process.

Advancing to step 13:
The number 81 fits into 190 2 times, leaving a remainder of 28.
The number 2 becomes the next digit in our result. 
Result so far: 4779.5679012
If we take 162 away from 190, we end up with 28.
Since there are no more digits in the dividend, we add a zero to the remainder making it 280, and continue the process.

Going ahead to step 14:
81 goes into 280 3 times with a remainder of 37.
Use 3 as the next digit of our solution. 
Result so far: 4779.56790123
Subtracting 243 from 280 leaves us with 37.
Since there are no more digits in the dividend, we add a zero to the remainder making it 370, and continue the process.

After the division, we end up with 4779.56790123 and a remainder of 3.7e-08.