21821654 ÷ 603 
Let's see how many times 603 fits into 21821654.

On to step 1:
The number 603 fits into 2 0 times, leaving a remainder of 2.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
If we take 0 away from 2, we end up with 2.
Take the next digit (1) from the dividend and append it to 2, then repeat: 21 / 603

Let's proceed to step 2:
603 goes into 21 0 times with a remainder of 21.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Subtract 0 from 21 to get 21.
Include the next digit (8) from the dividend after 21, then repeat: 218 / 603

Step 3:
When dividing 218 by 603, we get 0 with a remainder of 218.
Write down 0 as next digit of the result. 
Result so far: 0.0
Subtracting 0 from 218 leaves us with 218.
Append the next digit (2) from the dividend to 218 and continue with: 2182 / 603

On to step 4:
If we divide 2182 by 603, we get 3 and a remainder of 373.
Record the quotient 3 as the next digit in the result. 
Result so far: 3.0
Subtracting 1809 from 2182 leaves us with 373.
Bring next digit (1) of the dividend behind the 373 and repeat the process: 3731 / 603

Moving on to step 5:
3731 divided by 603 is 6 with a remainder of 113.
Record the quotient 6 as the next digit in the result. 
Result so far: 36.0
Subtracting 3618 from 3731 leaves us with 113.
Include the next digit (6) from the dividend after 113, then repeat: 1136 / 603

Advancing to step 6:
603 goes into 1136 1 times with a remainder of 533.
Record the quotient 1 as the next digit in the result. 
Result so far: 361.0
The remainder is 533 after subtracting 603 from 1136.
Fetch the next digit (5) from the dividend, attach it to 533 and continue: 5335 / 603

Going ahead to step 7:
When dividing 5335 by 603, we get 8 with a remainder of 511.
Record the quotient 8 as the next digit in the result. 
Result so far: 3618.0
Subtracting 4824 from 5335 leaves us with 511.
Fetch the next digit (4) from the dividend, attach it to 511 and continue: 5114 / 603

Advancing to step 8:
When dividing 5114 by 603, we get 8 with a remainder of 290.
Write down 8 as next digit of the result. 
Result so far: 36188.0
Deduct 4824 from 5114 and we're left with 290.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2900, and continue the process.

Moving on to step 9:
When dividing 2900 by 603, we get 4 with a remainder of 488.
The number 4 becomes the next digit in our result. 
Result so far: 36188.4
If we take 2412 away from 2900, we end up with 488.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4880, and continue the process.

Advancing to step 10:
603 goes into 4880 8 times with a remainder of 56.
Put 8 as the next digit of the answer. 
Result so far: 36188.48
Deduct 4824 from 4880 and we're left with 56.
Since there are no more digits in the dividend, we add a zero to the remainder making it 560, and continue the process.

Going ahead to step 11:
560 divided by 603 is 0 with a remainder of 560.
The next digit of our result is 0. 
Result so far: 36188.48
If we take 0 away from 560, we end up with 560.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5600, and continue the process.

Going ahead to step 12:
603 can be fit into 5600 9 times, resulting in a remainder of 173.
Put 9 as the next digit of the answer. 
Result so far: 36188.4809
If we take 5427 away from 5600, we end up with 173.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1730, and continue the process.

Let's proceed to step 13:
1730 divided by 603 is 2 with a remainder of 524.
Put 2 as the next digit of the answer. 
Result so far: 36188.48092
Subtracting 1206 from 1730 leaves us with 524.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5240, and continue the process.

Step 14:
5240 divided by 603 is 8 with a remainder of 416.
The next digit of our result is 8. 
Result so far: 36188.480928
The remainder is 416 after subtracting 4824 from 5240.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4160, and continue the process.

Moving on to step 15:
603 can be fit into 4160 6 times, resulting in a remainder of 542.
Record the quotient 6 as the next digit in the result. 
Result so far: 36188.4809286
Subtract 3618 from 4160 to get 542.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5420, and continue the process.

Step 16:
If we divide 5420 by 603, we get 8 and a remainder of 596.
The next digit of our result is 8. 
Result so far: 36188.48092868
The remainder is 596 after subtracting 4824 from 5420.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5960, and continue the process.

The final result is 36188.48092868 with a remainder of 5.96e-07.