We divide 21437563 by 406
We want to divide 21437563 by 406.

Let's proceed to step 1:
2 divided by 406 is 0 with a remainder of 2.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Subtracting 0 from 2 leaves us with 2.
Fetch the next digit (1) from the dividend, attach it to 2 and continue: 21 / 406

Step 2:
406 can be fit into 21 0 times, resulting in a remainder of 21.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
If we take 0 away from 21, we end up with 21.
Include the next digit (4) from the dividend after 21, then repeat: 214 / 406

Advancing to step 3:
The number 406 fits into 214 0 times, leaving a remainder of 214.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Deduct 0 from 214 and we're left with 214.
Include the next digit (3) from the dividend after 214, then repeat: 2143 / 406

Let's proceed to step 4:
When dividing 2143 by 406, we get 5 with a remainder of 113.
Use 5 as the next digit of our solution. 
Result so far: 5.0
The remainder is 113 after subtracting 2030 from 2143.
Take the next digit (7) from the dividend and append it to 113, then repeat: 1137 / 406

Going ahead to step 5:
When dividing 1137 by 406, we get 2 with a remainder of 325.
The number 2 becomes the next digit in our result. 
Result so far: 52.0
If we take 812 away from 1137, we end up with 325.
Append the next digit (5) from the dividend to 325 and continue with: 3255 / 406

Moving on to step 6:
The number 406 fits into 3255 8 times, leaving a remainder of 7.
Put 8 as the next digit of the answer. 
Result so far: 528.0
Deduct 3248 from 3255 and we're left with 7.
Fetch the next digit (6) from the dividend, attach it to 7 and continue: 76 / 406

Step 7:
The number 406 fits into 76 0 times, leaving a remainder of 76.
The number 0 becomes the next digit in our result. 
Result so far: 5280.0
If we take 0 away from 76, we end up with 76.
Append the next digit (3) from the dividend to 76 and continue with: 763 / 406

On to step 8:
406 can be fit into 763 1 times, resulting in a remainder of 357.
Use 1 as the next digit of our solution. 
Result so far: 52801.0
Subtract 406 from 763 to get 357.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3570, and continue the process.

Moving on to step 9:
The number 406 fits into 3570 8 times, leaving a remainder of 322.
The next digit of our result is 8. 
Result so far: 52801.8
If we subtract 3248 from 3570, we get 322.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3220, and continue the process.

Going ahead to step 10:
3220 divided by 406 is 7 with a remainder of 378.
Record the quotient 7 as the next digit in the result. 
Result so far: 52801.87
Subtracting 2842 from 3220 leaves us with 378.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3780, and continue the process.

On to step 11:
406 can be fit into 3780 9 times, resulting in a remainder of 126.
Record the quotient 9 as the next digit in the result. 
Result so far: 52801.879
Subtract 3654 from 3780 to get 126.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1260, and continue the process.

Moving on to step 12:
If we divide 1260 by 406, we get 3 and a remainder of 42.
Put 3 as the next digit of the answer. 
Result so far: 52801.8793
Subtract 1218 from 1260 to get 42.
Since there are no more digits in the dividend, we add a zero to the remainder making it 420, and continue the process.

Going ahead to step 13:
406 goes into 420 1 times with a remainder of 14.
The next digit of our result is 1. 
Result so far: 52801.87931
If we take 406 away from 420, we end up with 14.
Since there are no more digits in the dividend, we add a zero to the remainder making it 140, and continue the process.

Advancing to step 14:
140 divided by 406 is 0 with a remainder of 140.
The number 0 becomes the next digit in our result. 
Result so far: 52801.87931
Subtracting 0 from 140 leaves us with 140.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1400, and continue the process.

Advancing to step 15:
The number 406 fits into 1400 3 times, leaving a remainder of 182.
Write down 3 as next digit of the result. 
Result so far: 52801.8793103
The remainder is 182 after subtracting 1218 from 1400.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1820, and continue the process.

Advancing to step 16:
When dividing 1820 by 406, we get 4 with a remainder of 196.
Use 4 as the next digit of our solution. 
Result so far: 52801.87931034
Deduct 1624 from 1820 and we're left with 196.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1960, and continue the process.

After the division, we end up with 52801.87931034 and a remainder of 1.96e-07.