Let's divide 8538470 by 406
Our goal is to divide 8538470 by 406.

Going ahead to step 1:
When dividing 8 by 406, we get 0 with a remainder of 8.
The next digit of our result is 0. 
Result so far: 0.0
The remainder is 8 after subtracting 0 from 8.
Bring next digit (5) of the dividend behind the 8 and repeat the process: 85 / 406

On to step 2:
The number 406 fits into 85 0 times, leaving a remainder of 85.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Deduct 0 from 85 and we're left with 85.
Bring next digit (3) of the dividend behind the 85 and repeat the process: 853 / 406

Advancing to step 3:
406 goes into 853 2 times with a remainder of 41.
The number 2 becomes the next digit in our result. 
Result so far: 2.0
Subtracting 812 from 853 leaves us with 41.
Take the next digit (8) from the dividend and append it to 41, then repeat: 418 / 406

Advancing to step 4:
If we divide 418 by 406, we get 1 and a remainder of 12.
Record the quotient 1 as the next digit in the result. 
Result so far: 21.0
If we subtract 406 from 418, we get 12.
Take the next digit (4) from the dividend and append it to 12, then repeat: 124 / 406

Going ahead to step 5:
If we divide 124 by 406, we get 0 and a remainder of 124.
Use 0 as the next digit of our solution. 
Result so far: 210.0
Subtract 0 from 124 to get 124.
Take the next digit (7) from the dividend and append it to 124, then repeat: 1247 / 406

Step 6:
The number 406 fits into 1247 3 times, leaving a remainder of 29.
Write down 3 as next digit of the result. 
Result so far: 2103.0
Subtracting 1218 from 1247 leaves us with 29.
Append the next digit (0) from the dividend to 29 and continue with: 290 / 406

On to step 7:
290 divided by 406 is 0 with a remainder of 290.
Record the quotient 0 as the next digit in the result. 
Result so far: 21030.0
Subtract 0 from 290 to get 290.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2900, and continue the process.

On to step 8:
When dividing 2900 by 406, we get 7 with a remainder of 58.
The number 7 becomes the next digit in our result. 
Result so far: 21030.7
Deduct 2842 from 2900 and we're left with 58.
Since there are no more digits in the dividend, we add a zero to the remainder making it 580, and continue the process.

Let's proceed to step 9:
When dividing 580 by 406, we get 1 with a remainder of 174.
Record the quotient 1 as the next digit in the result. 
Result so far: 21030.71
The remainder is 174 after subtracting 406 from 580.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1740, and continue the process.

Let's proceed to step 10:
The number 406 fits into 1740 4 times, leaving a remainder of 116.
Put 4 as the next digit of the answer. 
Result so far: 21030.714
Subtracting 1624 from 1740 leaves us with 116.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1160, and continue the process.

On to step 11:
If we divide 1160 by 406, we get 2 and a remainder of 348.
Record the quotient 2 as the next digit in the result. 
Result so far: 21030.7142
Subtracting 812 from 1160 leaves us with 348.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3480, and continue the process.

On to step 12:
406 goes into 3480 8 times with a remainder of 232.
The next digit of our result is 8. 
Result so far: 21030.71428
Subtracting 3248 from 3480 leaves us with 232.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2320, and continue the process.

On to step 13:
406 goes into 2320 5 times with a remainder of 290.
The number 5 becomes the next digit in our result. 
Result so far: 21030.714285
If we take 2030 away from 2320, we end up 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.

Advancing to step 14:
If we divide 2900 by 406, we get 7 and a remainder of 58.
Put 7 as the next digit of the answer. 
Result so far: 21030.7142857
If we take 2842 away from 2900, we end up with 58.
Since there are no more digits in the dividend, we add a zero to the remainder making it 580, and continue the process.

Moving on to step 15:
406 can be fit into 580 1 times, resulting in a remainder of 174.
Put 1 as the next digit of the answer. 
Result so far: 21030.71428571
If we take 406 away from 580, we end up with 174.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1740, and continue the process.

After the division, we end up with 21030.71428571 and a remainder of 1.74e-07.