We look at the division of 77947561 by 320 
Let's see how many times 320 fits into 77947561.

On to step 1:
When dividing 7 by 320, we get 0 with a remainder of 7.
Write down 0 as next digit of the result. 
Result so far: 0.0
Subtracting 0 from 7 leaves us with 7.
Fetch the next digit (7) from the dividend, attach it to 7 and continue: 77 / 320

On to step 2:
320 goes into 77 0 times with a remainder of 77.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Subtract 0 from 77 to get 77.
Take the next digit (9) from the dividend and append it to 77, then repeat: 779 / 320

Step 3:
If we divide 779 by 320, we get 2 and a remainder of 139.
Use 2 as the next digit of our solution. 
Result so far: 2.0
Deduct 640 from 779 and we're left with 139.
Bring next digit (4) of the dividend behind the 139 and repeat the process: 1394 / 320

On to step 4:
When dividing 1394 by 320, we get 4 with a remainder of 114.
The number 4 becomes the next digit in our result. 
Result so far: 24.0
Deduct 1280 from 1394 and we're left with 114.
Append the next digit (7) from the dividend to 114 and continue with: 1147 / 320

Let's proceed to step 5:
320 can be fit into 1147 3 times, resulting in a remainder of 187.
Write down 3 as next digit of the result. 
Result so far: 243.0
Subtracting 960 from 1147 leaves us with 187.
Include the next digit (5) from the dividend after 187, then repeat: 1875 / 320

Moving on to step 6:
1875 divided by 320 is 5 with a remainder of 275.
Record the quotient 5 as the next digit in the result. 
Result so far: 2435.0
Deduct 1600 from 1875 and we're left with 275.
Include the next digit (6) from the dividend after 275, then repeat: 2756 / 320

Step 7:
If we divide 2756 by 320, we get 8 and a remainder of 196.
Write down 8 as next digit of the result. 
Result so far: 24358.0
Deduct 2560 from 2756 and we're left with 196.
Bring next digit (1) of the dividend behind the 196 and repeat the process: 1961 / 320

Advancing to step 8:
When dividing 1961 by 320, we get 6 with a remainder of 41.
The number 6 becomes the next digit in our result. 
Result so far: 243586.0
Deduct 1920 from 1961 and we're left with 41.
Since there are no more digits in the dividend, we add a zero to the remainder making it 410, and continue the process.

Let's proceed to step 9:
If we divide 410 by 320, we get 1 and a remainder of 90.
Use 1 as the next digit of our solution. 
Result so far: 243586.1
Subtracting 320 from 410 leaves us with 90.
Since there are no more digits in the dividend, we add a zero to the remainder making it 900, and continue the process.

Moving on to step 10:
When dividing 900 by 320, we get 2 with a remainder of 260.
The next digit of our result is 2. 
Result so far: 243586.12
Subtracting 640 from 900 leaves us with 260.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2600, and continue the process.

Advancing to step 11:
320 goes into 2600 8 times with a remainder of 40.
Write down 8 as next digit of the result. 
Result so far: 243586.128
Subtract 2560 from 2600 to get 40.
Since there are no more digits in the dividend, we add a zero to the remainder making it 400, and continue the process.

Step 12:
When dividing 400 by 320, we get 1 with a remainder of 80.
Write down 1 as next digit of the result. 
Result so far: 243586.1281
If we take 320 away from 400, we end up with 80.
Since there are no more digits in the dividend, we add a zero to the remainder making it 800, and continue the process.

Moving on to step 13:
When dividing 800 by 320, we get 2 with a remainder of 160.
Write down 2 as next digit of the result. 
Result so far: 243586.12812
If we take 640 away from 800, we end up with 160.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1600, and continue the process.

Let's proceed to step 14:
The number 320 fits into 1600 5 times, leaving a remainder of 0.
Record the quotient 5 as the next digit in the result. 
Result so far: 243586.128125
If we subtract 1600 from 1600, 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.

On to step 15:
0 divided by 320 is 0 with a remainder of 0.
The number 0 becomes the next digit in our result. 
Result so far: 243586.128125
Subtracting 0 from 0 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.

Step 16:
320 can be fit into 0 0 times, resulting in a remainder of 0.
Put 0 as the next digit of the answer. 
Result so far: 243586.128125
Subtract 0 from 0 to 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.

The quotient of the division is 243586.128125, and the remainder is 0.0.