We divide 163603 by 81
We're looking to find how many times 81 goes into 163603.

Step 1:
The number 81 fits into 1 0 times, leaving a remainder of 1.
Write down 0 as next digit of the result. 
Result so far: 0.0
If we take 0 away from 1, we end up with 1.
Grab the next digit (6) from the dividend, add it to 1, then carry on: 16 / 81

Let's proceed to step 2:
If we divide 16 by 81, we get 0 and a remainder of 16.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Deduct 0 from 16 and we're left with 16.
Append the next digit (3) from the dividend to 16 and continue with: 163 / 81

On to step 3:
If we divide 163 by 81, we get 2 and a remainder of 1.
Write down 2 as next digit of the result. 
Result so far: 2.0
Deduct 162 from 163 and we're left with 1.
Grab the next digit (6) from the dividend, add it to 1, then carry on: 16 / 81

Advancing to step 4:
When dividing 16 by 81, we get 0 with a remainder of 16.
Write down 0 as next digit of the result. 
Result so far: 20.0
Subtracting 0 from 16 leaves us with 16.
Fetch the next digit (0) from the dividend, attach it to 16 and continue: 160 / 81

Moving on to step 5:
When dividing 160 by 81, we get 1 with a remainder of 79.
The next digit of our result is 1. 
Result so far: 201.0
Subtracting 81 from 160 leaves us with 79.
Grab the next digit (3) from the dividend, add it to 79, then carry on: 793 / 81

Going ahead to step 6:
The number 81 fits into 793 9 times, leaving a remainder of 64.
The number 9 becomes the next digit in our result. 
Result so far: 2019.0
If we take 729 away from 793, 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.

Advancing to step 7:
81 can be fit into 640 7 times, resulting in a remainder of 73.
Write down 7 as next digit of the result. 
Result so far: 2019.7
If we take 567 away from 640, we end up 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.

On to step 8:
730 divided by 81 is 9 with a remainder of 1.
The number 9 becomes the next digit in our result. 
Result so far: 2019.79
Subtracting 729 from 730 leaves us with 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 9:
81 goes into 10 0 times with a remainder of 10.
Write down 0 as next digit of the result. 
Result so far: 2019.79
If we take 0 away from 10, we end up 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.

Let's proceed to step 10:
When dividing 100 by 81, we get 1 with a remainder of 19.
Write down 1 as next digit of the result. 
Result so far: 2019.7901
Deduct 81 from 100 and we're left with 19.
Since there are no more digits in the dividend, we add a zero to the remainder making it 190, and continue the process.

On to step 11:
81 goes into 190 2 times with a remainder of 28.
The next digit of our result is 2. 
Result so far: 2019.79012
The remainder is 28 after subtracting 162 from 190.
Since there are no more digits in the dividend, we add a zero to the remainder making it 280, and continue the process.

Let's proceed to step 12:
81 can be fit into 280 3 times, resulting in a remainder of 37.
Use 3 as the next digit of our solution. 
Result so far: 2019.790123
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.

Advancing to step 13:
If we divide 370 by 81, we get 4 and a remainder of 46.
Record the quotient 4 as the next digit in the result. 
Result so far: 2019.7901234
Subtracting 324 from 370 leaves us 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 14:
460 divided by 81 is 5 with a remainder of 55.
Write down 5 as next digit of the result. 
Result so far: 2019.79012345
The remainder is 55 after subtracting 405 from 460.
Since there are no more digits in the dividend, we add a zero to the remainder making it 550, and continue the process.

The quotient of the division is 2019.79012345, and the remainder is 5.5e-08.