We look at the division of 69457386 by 646 
We want to divide 69457386 by 646.

Going ahead to step 1:
646 goes into 6 0 times with a remainder of 6.
Put 0 as the next digit of the answer. 
Result so far: 0.0
If we take 0 away from 6, we end up with 6.
Include the next digit (9) from the dividend after 6, then repeat: 69 / 646

On to step 2:
When dividing 69 by 646, we get 0 with a remainder of 69.
Write down 0 as next digit of the result. 
Result so far: 0.0
If we take 0 away from 69, we end up with 69.
Append the next digit (4) from the dividend to 69 and continue with: 694 / 646

Step 3:
If we divide 694 by 646, we get 1 and a remainder of 48.
Write down 1 as next digit of the result. 
Result so far: 1.0
If we subtract 646 from 694, we get 48.
Append the next digit (5) from the dividend to 48 and continue with: 485 / 646

Step 4:
485 divided by 646 is 0 with a remainder of 485.
The next digit of our result is 0. 
Result so far: 10.0
Deduct 0 from 485 and we're left with 485.
Grab the next digit (7) from the dividend, add it to 485, then carry on: 4857 / 646

On to step 5:
If we divide 4857 by 646, we get 7 and a remainder of 335.
Put 7 as the next digit of the answer. 
Result so far: 107.0
If we subtract 4522 from 4857, we get 335.
Fetch the next digit (3) from the dividend, attach it to 335 and continue: 3353 / 646

Going ahead to step 6:
646 goes into 3353 5 times with a remainder of 123.
The next digit of our result is 5. 
Result so far: 1075.0
Subtracting 3230 from 3353 leaves us with 123.
Fetch the next digit (8) from the dividend, attach it to 123 and continue: 1238 / 646

Let's proceed to step 7:
646 goes into 1238 1 times with a remainder of 592.
Record the quotient 1 as the next digit in the result. 
Result so far: 10751.0
The remainder is 592 after subtracting 646 from 1238.
Grab the next digit (6) from the dividend, add it to 592, then carry on: 5926 / 646

Moving on to step 8:
646 can be fit into 5926 9 times, resulting in a remainder of 112.
Record the quotient 9 as the next digit in the result. 
Result so far: 107519.0
Subtract 5814 from 5926 to get 112.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1120, and continue the process.

Let's proceed to step 9:
646 goes into 1120 1 times with a remainder of 474.
Put 1 as the next digit of the answer. 
Result so far: 107519.1
Subtracting 646 from 1120 leaves us with 474.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4740, and continue the process.

On to step 10:
4740 divided by 646 is 7 with a remainder of 218.
Use 7 as the next digit of our solution. 
Result so far: 107519.17
Subtract 4522 from 4740 to get 218.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2180, and continue the process.

Let's proceed to step 11:
646 can be fit into 2180 3 times, resulting in a remainder of 242.
The number 3 becomes the next digit in our result. 
Result so far: 107519.173
The remainder is 242 after subtracting 1938 from 2180.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2420, and continue the process.

Advancing to step 12:
646 goes into 2420 3 times with a remainder of 482.
The next digit of our result is 3. 
Result so far: 107519.1733
If we subtract 1938 from 2420, we get 482.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4820, and continue the process.

The quotient of the division is 107519.1733, and the remainder is 0.00482.