We divide 64638858 by 406
We want to divide 64638858 by 406.

Step 1:
The number 406 fits into 6 0 times, leaving a remainder of 6.
Use 0 as the next digit of our solution. 
Result so far: 0.0
The remainder is 6 after subtracting 0 from 6.
Take the next digit (4) from the dividend and append it to 6, then repeat: 64 / 406

Going ahead to step 2:
406 goes into 64 0 times with a remainder of 64.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Deduct 0 from 64 and we're left with 64.
Include the next digit (6) from the dividend after 64, then repeat: 646 / 406

Moving on to step 3:
The number 406 fits into 646 1 times, leaving a remainder of 240.
The next digit of our result is 1. 
Result so far: 1.0
If we subtract 406 from 646, we get 240.
Bring next digit (3) of the dividend behind the 240 and repeat the process: 2403 / 406

Step 4:
If we divide 2403 by 406, we get 5 and a remainder of 373.
Record the quotient 5 as the next digit in the result. 
Result so far: 15.0
Deduct 2030 from 2403 and we're left with 373.
Take the next digit (8) from the dividend and append it to 373, then repeat: 3738 / 406

Going ahead to step 5:
The number 406 fits into 3738 9 times, leaving a remainder of 84.
Write down 9 as next digit of the result. 
Result so far: 159.0
Subtracting 3654 from 3738 leaves us with 84.
Bring next digit (8) of the dividend behind the 84 and repeat the process: 848 / 406

Step 6:
848 divided by 406 is 2 with a remainder of 36.
Record the quotient 2 as the next digit in the result. 
Result so far: 1592.0
Deduct 812 from 848 and we're left with 36.
Fetch the next digit (5) from the dividend, attach it to 36 and continue: 365 / 406

Let's proceed to step 7:
406 can be fit into 365 0 times, resulting in a remainder of 365.
Use 0 as the next digit of our solution. 
Result so far: 15920.0
If we subtract 0 from 365, we get 365.
Include the next digit (8) from the dividend after 365, then repeat: 3658 / 406

Step 8:
When dividing 3658 by 406, we get 9 with a remainder of 4.
The next digit of our result is 9. 
Result so far: 159209.0
If we take 3654 away from 3658, we end up with 4.
Since there are no more digits in the dividend, we add a zero to the remainder making it 40, and continue the process.

Advancing to step 9:
The number 406 fits into 40 0 times, leaving a remainder of 40.
Put 0 as the next digit of the answer. 
Result so far: 159209.0
If we subtract 0 from 40, we get 40.
Since there are no more digits in the dividend, we add a zero to the remainder making it 400, and continue the process.

Let's proceed to step 10:
If we divide 400 by 406, we get 0 and a remainder of 400.
Use 0 as the next digit of our solution. 
Result so far: 159209.0
Subtract 0 from 400 to get 400.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4000, and continue the process.

The final result is 159209.0 with a remainder of 0.4.