We look at the division of 64341964 by 16 
We want to figure out the number of times 64341964 can be divided by 16.

Let's proceed to step 1:
The number 16 fits into 6 0 times, leaving a remainder of 6.
The next digit of our result is 0. 
Result so far: 0.0
Deduct 0 from 6 and we're left with 6.
Grab the next digit (4) from the dividend, add it to 6, then carry on: 64 / 16

Step 2:
16 can be fit into 64 4 times, resulting in a remainder of 0.
Use 4 as the next digit of our solution. 
Result so far: 4.0
The remainder is 0 after subtracting 64 from 64.
Grab the next digit (3) from the dividend, add it to 0, then carry on: 3 / 16

Advancing to step 3:
16 goes into 3 0 times with a remainder of 3.
Put 0 as the next digit of the answer. 
Result so far: 40.0
Subtracting 0 from 3 leaves us with 3.
Take the next digit (4) from the dividend and append it to 3, then repeat: 34 / 16

Let's proceed to step 4:
When dividing 34 by 16, we get 2 with a remainder of 2.
The number 2 becomes the next digit in our result. 
Result so far: 402.0
The remainder is 2 after subtracting 32 from 34.
Bring next digit (1) of the dividend behind the 2 and repeat the process: 21 / 16

On to step 5:
16 can be fit into 21 1 times, resulting in a remainder of 5.
Write down 1 as next digit of the result. 
Result so far: 4021.0
Subtract 16 from 21 to get 5.
Include the next digit (9) from the dividend after 5, then repeat: 59 / 16

On to step 6:
59 divided by 16 is 3 with a remainder of 11.
Use 3 as the next digit of our solution. 
Result so far: 40213.0
If we subtract 48 from 59, we get 11.
Append the next digit (6) from the dividend to 11 and continue with: 116 / 16

Moving on to step 7:
116 divided by 16 is 7 with a remainder of 4.
Put 7 as the next digit of the answer. 
Result so far: 402137.0
Subtracting 112 from 116 leaves us with 4.
Include the next digit (4) from the dividend after 4, then repeat: 44 / 16

Going ahead to step 8:
16 can be fit into 44 2 times, resulting in a remainder of 12.
Put 2 as the next digit of the answer. 
Result so far: 4021372.0
If we subtract 32 from 44, we get 12.
Since there are no more digits in the dividend, we add a zero to the remainder making it 120, and continue the process.

On to step 9:
16 can be fit into 120 7 times, resulting in a remainder of 8.
The number 7 becomes the next digit in our result. 
Result so far: 4021372.7
The remainder is 8 after subtracting 112 from 120.
Since there are no more digits in the dividend, we add a zero to the remainder making it 80, and continue the process.

Moving on to step 10:
The number 16 fits into 80 5 times, leaving a remainder of 0.
The next digit of our result is 5. 
Result so far: 4021372.75
Subtracting 80 from 80 leaves us 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.

On to step 11:
When dividing 0 by 16, we get 0 with a remainder of 0.
The next digit of our result is 0. 
Result so far: 4021372.75
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.

Advancing to step 12:
The number 16 fits into 0 0 times, leaving a remainder of 0.
The number 0 becomes the next digit in our result. 
Result so far: 4021372.75
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 4021372.75, and the remainder is 0.0.