21406759 ÷ 597 
We want to divide 21406759 by 597.

Going ahead to step 1:
2 divided by 597 is 0 with a remainder of 2.
The next digit of our result is 0. 
Result so far: 0.0
If we subtract 0 from 2, we get 2.
Fetch the next digit (1) from the dividend, attach it to 2 and continue: 21 / 597

Going ahead to step 2:
The number 597 fits into 21 0 times, leaving a remainder of 21.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Subtract 0 from 21 to get 21.
Take the next digit (4) from the dividend and append it to 21, then repeat: 214 / 597

Step 3:
214 divided by 597 is 0 with a remainder of 214.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
The remainder is 214 after subtracting 0 from 214.
Take the next digit (0) from the dividend and append it to 214, then repeat: 2140 / 597

Step 4:
597 can be fit into 2140 3 times, resulting in a remainder of 349.
Write down 3 as next digit of the result. 
Result so far: 3.0
If we take 1791 away from 2140, we end up with 349.
Include the next digit (6) from the dividend after 349, then repeat: 3496 / 597

Let's proceed to step 5:
When dividing 3496 by 597, we get 5 with a remainder of 511.
Put 5 as the next digit of the answer. 
Result so far: 35.0
Subtracting 2985 from 3496 leaves us with 511.
Take the next digit (7) from the dividend and append it to 511, then repeat: 5117 / 597

Advancing to step 6:
5117 divided by 597 is 8 with a remainder of 341.
The next digit of our result is 8. 
Result so far: 358.0
If we subtract 4776 from 5117, we get 341.
Bring next digit (5) of the dividend behind the 341 and repeat the process: 3415 / 597

Step 7:
When dividing 3415 by 597, we get 5 with a remainder of 430.
Write down 5 as next digit of the result. 
Result so far: 3585.0
Subtract 2985 from 3415 to get 430.
Grab the next digit (9) from the dividend, add it to 430, then carry on: 4309 / 597

Going ahead to step 8:
If we divide 4309 by 597, we get 7 and a remainder of 130.
Put 7 as the next digit of the answer. 
Result so far: 35857.0
If we subtract 4179 from 4309, we get 130.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1300, and continue the process.

Going ahead to step 9:
1300 divided by 597 is 2 with a remainder of 106.
Put 2 as the next digit of the answer. 
Result so far: 35857.2
Subtract 1194 from 1300 to get 106.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1060, and continue the process.

On to step 10:
1060 divided by 597 is 1 with a remainder of 463.
Put 1 as the next digit of the answer. 
Result so far: 35857.21
Subtract 597 from 1060 to get 463.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4630, and continue the process.

Step 11:
597 can be fit into 4630 7 times, resulting in a remainder of 451.
Record the quotient 7 as the next digit in the result. 
Result so far: 35857.217
The remainder is 451 after subtracting 4179 from 4630.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4510, and continue the process.

On to step 12:
597 can be fit into 4510 7 times, resulting in a remainder of 331.
Use 7 as the next digit of our solution. 
Result so far: 35857.2177
Subtracting 4179 from 4510 leaves us with 331.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3310, and continue the process.

The final result is 35857.2177 with a remainder of 0.00331.