10006237 ÷ 421 
We're looking to find how many times 421 goes into 10006237.

Advancing to step 1:
The number 421 fits into 1 0 times, leaving a remainder of 1.
The next digit of our result is 0. 
Result so far: 0.0
If we subtract 0 from 1, we get 1.
Include the next digit (0) from the dividend after 1, then repeat: 10 / 421

Step 2:
If we divide 10 by 421, we get 0 and a remainder of 10.
The next digit of our result is 0. 
Result so far: 0.0
The remainder is 10 after subtracting 0 from 10.
Grab the next digit (0) from the dividend, add it to 10, then carry on: 100 / 421

Step 3:
100 divided by 421 is 0 with a remainder of 100.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Deduct 0 from 100 and we're left with 100.
Fetch the next digit (0) from the dividend, attach it to 100 and continue: 1000 / 421

Let's proceed to step 4:
421 can be fit into 1000 2 times, resulting in a remainder of 158.
Write down 2 as next digit of the result. 
Result so far: 2.0
If we take 842 away from 1000, we end up with 158.
Bring next digit (6) of the dividend behind the 158 and repeat the process: 1586 / 421

Advancing to step 5:
When dividing 1586 by 421, we get 3 with a remainder of 323.
Use 3 as the next digit of our solution. 
Result so far: 23.0
Subtract 1263 from 1586 to get 323.
Bring next digit (2) of the dividend behind the 323 and repeat the process: 3232 / 421

On to step 6:
When dividing 3232 by 421, we get 7 with a remainder of 285.
Put 7 as the next digit of the answer. 
Result so far: 237.0
Deduct 2947 from 3232 and we're left with 285.
Fetch the next digit (3) from the dividend, attach it to 285 and continue: 2853 / 421

On to step 7:
2853 divided by 421 is 6 with a remainder of 327.
Use 6 as the next digit of our solution. 
Result so far: 2376.0
If we take 2526 away from 2853, we end up with 327.
Bring next digit (7) of the dividend behind the 327 and repeat the process: 3277 / 421

Going ahead to step 8:
3277 divided by 421 is 7 with a remainder of 330.
Write down 7 as next digit of the result. 
Result so far: 23767.0
Deduct 2947 from 3277 and we're left with 330.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3300, and continue the process.

On to step 9:
When dividing 3300 by 421, we get 7 with a remainder of 353.
The number 7 becomes the next digit in our result. 
Result so far: 23767.7
Subtract 2947 from 3300 to get 353.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3530, and continue the process.

Advancing to step 10:
3530 divided by 421 is 8 with a remainder of 162.
The number 8 becomes the next digit in our result. 
Result so far: 23767.78
Deduct 3368 from 3530 and we're left with 162.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1620, and continue the process.

Let's proceed to step 11:
The number 421 fits into 1620 3 times, leaving a remainder of 357.
Put 3 as the next digit of the answer. 
Result so far: 23767.783
If we subtract 1263 from 1620, we 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.

Step 12:
The number 421 fits into 3570 8 times, leaving a remainder of 202.
The next digit of our result is 8. 
Result so far: 23767.7838
Subtracting 3368 from 3570 leaves us with 202.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2020, and continue the process.

Going ahead to step 13:
2020 divided by 421 is 4 with a remainder of 336.
Use 4 as the next digit of our solution. 
Result so far: 23767.78384
If we take 1684 away from 2020, we end up with 336.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3360, and continue the process.

Step 14:
If we divide 3360 by 421, we get 7 and a remainder of 413.
The number 7 becomes the next digit in our result. 
Result so far: 23767.783847
Subtract 2947 from 3360 to get 413.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4130, and continue the process.

Let's proceed to step 15:
When dividing 4130 by 421, we get 9 with a remainder of 341.
Put 9 as the next digit of the answer. 
Result so far: 23767.7838479
The remainder is 341 after subtracting 3789 from 4130.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3410, and continue the process.

On to step 16:
If we divide 3410 by 421, we get 8 and a remainder of 42.
The next digit of our result is 8. 
Result so far: 23767.78384798
Subtracting 3368 from 3410 leaves us with 42.
Since there are no more digits in the dividend, we add a zero to the remainder making it 420, and continue the process.

The final result is 23767.78384798 with a remainder of 4.2e-08.