646816 divided by 38 
We're looking to find how many times 38 goes into 646816.

Going ahead to step 1:
38 goes into 6 0 times with a remainder of 6.
Write down 0 as next digit of the result. 
Result so far: 0.0
If we subtract 0 from 6, we get 6.
Bring next digit (4) of the dividend behind the 6 and repeat the process: 64 / 38

Advancing to step 2:
38 goes into 64 1 times with a remainder of 26.
Put 1 as the next digit of the answer. 
Result so far: 1.0
Subtracting 38 from 64 leaves us with 26.
Append the next digit (6) from the dividend to 26 and continue with: 266 / 38

Going ahead to step 3:
If we divide 266 by 38, we get 7 and a remainder of 0.
Write down 7 as next digit of the result. 
Result so far: 17.0
If we subtract 266 from 266, we get 0.
Grab the next digit (8) from the dividend, add it to 0, then carry on: 8 / 38

Advancing to step 4:
8 divided by 38 is 0 with a remainder of 8.
Put 0 as the next digit of the answer. 
Result so far: 170.0
If we take 0 away from 8, we end up with 8.
Grab the next digit (1) from the dividend, add it to 8, then carry on: 81 / 38

Moving on to step 5:
81 divided by 38 is 2 with a remainder of 5.
The next digit of our result is 2. 
Result so far: 1702.0
Deduct 76 from 81 and we're left with 5.
Grab the next digit (6) from the dividend, add it to 5, then carry on: 56 / 38

Step 6:
The number 38 fits into 56 1 times, leaving a remainder of 18.
The number 1 becomes the next digit in our result. 
Result so far: 17021.0
Deduct 38 from 56 and we're left with 18.
Since there are no more digits in the dividend, we add a zero to the remainder making it 180, and continue the process.

Step 7:
180 divided by 38 is 4 with a remainder of 28.
The number 4 becomes the next digit in our result. 
Result so far: 17021.4
If we take 152 away from 180, we end up with 28.
Since there are no more digits in the dividend, we add a zero to the remainder making it 280, and continue the process.

Let's proceed to step 8:
When dividing 280 by 38, we get 7 with a remainder of 14.
Write down 7 as next digit of the result. 
Result so far: 17021.47
Deduct 266 from 280 and we're left with 14.
Since there are no more digits in the dividend, we add a zero to the remainder making it 140, and continue the process.

Step 9:
140 divided by 38 is 3 with a remainder of 26.
Write down 3 as next digit of the result. 
Result so far: 17021.473
Subtracting 114 from 140 leaves us with 26.
Since there are no more digits in the dividend, we add a zero to the remainder making it 260, and continue the process.

Let's proceed to step 10:
38 goes into 260 6 times with a remainder of 32.
Put 6 as the next digit of the answer. 
Result so far: 17021.4736
If we subtract 228 from 260, we get 32.
Since there are no more digits in the dividend, we add a zero to the remainder making it 320, and continue the process.

Let's proceed to step 11:
The number 38 fits into 320 8 times, leaving a remainder of 16.
Put 8 as the next digit of the answer. 
Result so far: 17021.47368
If we subtract 304 from 320, we get 16.
Since there are no more digits in the dividend, we add a zero to the remainder making it 160, and continue the process.

Going ahead to step 12:
38 goes into 160 4 times with a remainder of 8.
Write down 4 as next digit of the result. 
Result so far: 17021.473684
Subtract 152 from 160 to get 8.
Since there are no more digits in the dividend, we add a zero to the remainder making it 80, and continue the process.

On to step 13:
If we divide 80 by 38, we get 2 and a remainder of 4.
Use 2 as the next digit of our solution. 
Result so far: 17021.4736842
Subtracting 76 from 80 leaves us 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 14:
38 can be fit into 40 1 times, resulting in a remainder of 2.
The next digit of our result is 1. 
Result so far: 17021.47368421
If we subtract 38 from 40, we get 2.
Since there are no more digits in the dividend, we add a zero to the remainder making it 20, and continue the process.

Our division results in 17021.47368421 with a remaining 2e-09.