999400 divided by 64 
We want to figure out the number of times 999400 can be divided by 64.

Let's proceed to step 1:
The number 64 fits into 9 0 times, leaving a remainder of 9.
The next digit of our result is 0. 
Result so far: 0.0
If we take 0 away from 9, we end up with 9.
Include the next digit (9) from the dividend after 9, then repeat: 99 / 64

Moving on to step 2:
If we divide 99 by 64, we get 1 and a remainder of 35.
The next digit of our result is 1. 
Result so far: 1.0
If we take 64 away from 99, we end up with 35.
Fetch the next digit (9) from the dividend, attach it to 35 and continue: 359 / 64

Let's proceed to step 3:
64 can be fit into 359 5 times, resulting in a remainder of 39.
The next digit of our result is 5. 
Result so far: 15.0
Deduct 320 from 359 and we're left with 39.
Grab the next digit (4) from the dividend, add it to 39, then carry on: 394 / 64

On to step 4:
64 goes into 394 6 times with a remainder of 10.
Use 6 as the next digit of our solution. 
Result so far: 156.0
Deduct 384 from 394 and we're left with 10.
Include the next digit (0) from the dividend after 10, then repeat: 100 / 64

On to step 5:
100 divided by 64 is 1 with a remainder of 36.
The next digit of our result is 1. 
Result so far: 1561.0
Subtracting 64 from 100 leaves us with 36.
Grab the next digit (0) from the dividend, add it to 36, then carry on: 360 / 64

Moving on to step 6:
64 can be fit into 360 5 times, resulting in a remainder of 40.
Write down 5 as next digit of the result. 
Result so far: 15615.0
The remainder is 40 after subtracting 320 from 360.
Since there are no more digits in the dividend, we add a zero to the remainder making it 400, and continue the process.

Moving on to step 7:
400 divided by 64 is 6 with a remainder of 16.
The number 6 becomes the next digit in our result. 
Result so far: 15615.6
If we take 384 away from 400, we end up with 16.
Since there are no more digits in the dividend, we add a zero to the remainder making it 160, and continue the process.

On to step 8:
The number 64 fits into 160 2 times, leaving a remainder of 32.
The number 2 becomes the next digit in our result. 
Result so far: 15615.62
If we take 128 away from 160, we end up with 32.
Since there are no more digits in the dividend, we add a zero to the remainder making it 320, and continue the process.

Step 9:
When dividing 320 by 64, we get 5 with a remainder of 0.
The number 5 becomes the next digit in our result. 
Result so far: 15615.625
The remainder is 0 after subtracting 320 from 320.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

Going ahead to step 10:
The number 64 fits into 0 0 times, leaving a remainder of 0.
Put 0 as the next digit of the answer. 
Result so far: 15615.625
If we subtract 0 from 0, we get 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

Step 11:
64 can be fit into 0 0 times, resulting in a remainder of 0.
The number 0 becomes the next digit in our result. 
Result so far: 15615.625
If we take 0 away from 0, we end up with 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

The quotient of the division is 15615.625, and the remainder is 0.0.