We look at the division of 78645357 by 490 
We're looking to find how many times 490 goes into 78645357.

Moving on to step 1:
7 divided by 490 is 0 with a remainder of 7.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Subtract 0 from 7 to get 7.
Bring next digit (8) of the dividend behind the 7 and repeat the process: 78 / 490

Step 2:
78 divided by 490 is 0 with a remainder of 78.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Subtract 0 from 78 to get 78.
Include the next digit (6) from the dividend after 78, then repeat: 786 / 490

Let's proceed to step 3:
490 goes into 786 1 times with a remainder of 296.
Use 1 as the next digit of our solution. 
Result so far: 1.0
Deduct 490 from 786 and we're left with 296.
Append the next digit (4) from the dividend to 296 and continue with: 2964 / 490

Advancing to step 4:
When dividing 2964 by 490, we get 6 with a remainder of 24.
The next digit of our result is 6. 
Result so far: 16.0
Deduct 2940 from 2964 and we're left with 24.
Bring next digit (5) of the dividend behind the 24 and repeat the process: 245 / 490

Step 5:
490 goes into 245 0 times with a remainder of 245.
The next digit of our result is 0. 
Result so far: 160.0
If we subtract 0 from 245, we get 245.
Fetch the next digit (3) from the dividend, attach it to 245 and continue: 2453 / 490

Advancing to step 6:
490 can be fit into 2453 5 times, resulting in a remainder of 3.
Use 5 as the next digit of our solution. 
Result so far: 1605.0
If we take 2450 away from 2453, we end up with 3.
Take the next digit (5) from the dividend and append it to 3, then repeat: 35 / 490

Step 7:
490 can be fit into 35 0 times, resulting in a remainder of 35.
The next digit of our result is 0. 
Result so far: 16050.0
Deduct 0 from 35 and we're left with 35.
Bring next digit (7) of the dividend behind the 35 and repeat the process: 357 / 490

Step 8:
490 goes into 357 0 times with a remainder of 357.
Write down 0 as next digit of the result. 
Result so far: 160500.0
Deduct 0 from 357 and we're left with 357.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3570, and continue the process.

On to step 9:
The number 490 fits into 3570 7 times, leaving a remainder of 140.
The number 7 becomes the next digit in our result. 
Result so far: 160500.7
Deduct 3430 from 3570 and we're left with 140.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1400, and continue the process.

Let's proceed to step 10:
1400 divided by 490 is 2 with a remainder of 420.
Put 2 as the next digit of the answer. 
Result so far: 160500.72
The remainder is 420 after subtracting 980 from 1400.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4200, and continue the process.

On to step 11:
4200 divided by 490 is 8 with a remainder of 280.
The number 8 becomes the next digit in our result. 
Result so far: 160500.728
Deduct 3920 from 4200 and we're left with 280.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2800, and continue the process.

Going ahead to step 12:
490 goes into 2800 5 times with a remainder of 350.
The next digit of our result is 5. 
Result so far: 160500.7285
Subtracting 2450 from 2800 leaves us with 350.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3500, and continue the process.

Advancing to step 13:
490 can be fit into 3500 7 times, resulting in a remainder of 70.
The next digit of our result is 7. 
Result so far: 160500.72857
Subtract 3430 from 3500 to get 70.
Since there are no more digits in the dividend, we add a zero to the remainder making it 700, and continue the process.

Advancing to step 14:
700 divided by 490 is 1 with a remainder of 210.
Use 1 as the next digit of our solution. 
Result so far: 160500.728571
If we take 490 away from 700, we end up with 210.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2100, and continue the process.

Moving on to step 15:
490 goes into 2100 4 times with a remainder of 140.
Write down 4 as next digit of the result. 
Result so far: 160500.7285714
If we subtract 1960 from 2100, we get 140.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1400, and continue the process.

Step 16:
The number 490 fits into 1400 2 times, leaving a remainder of 420.
The number 2 becomes the next digit in our result. 
Result so far: 160500.72857142
Subtracting 980 from 1400 leaves us with 420.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4200, and continue the process.

The quotient of the division is 160500.72857142, and the remainder is 4.2e-07.