39648865 ÷ 820 
We're looking to find how many times 820 goes into 39648865.

Step 1:
3 divided by 820 is 0 with a remainder of 3.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
If we subtract 0 from 3, we get 3.
Append the next digit (9) from the dividend to 3 and continue with: 39 / 820

On to step 2:
820 goes into 39 0 times with a remainder of 39.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Deduct 0 from 39 and we're left with 39.
Take the next digit (6) from the dividend and append it to 39, then repeat: 396 / 820

Moving on to step 3:
If we divide 396 by 820, we get 0 and a remainder of 396.
Put 0 as the next digit of the answer. 
Result so far: 0.0
If we subtract 0 from 396, we get 396.
Bring next digit (4) of the dividend behind the 396 and repeat the process: 3964 / 820

Going ahead to step 4:
820 can be fit into 3964 4 times, resulting in a remainder of 684.
Use 4 as the next digit of our solution. 
Result so far: 4.0
The remainder is 684 after subtracting 3280 from 3964.
Grab the next digit (8) from the dividend, add it to 684, then carry on: 6848 / 820

Let's proceed to step 5:
When dividing 6848 by 820, we get 8 with a remainder of 288.
The next digit of our result is 8. 
Result so far: 48.0
Deduct 6560 from 6848 and we're left with 288.
Fetch the next digit (8) from the dividend, attach it to 288 and continue: 2888 / 820

Going ahead to step 6:
When dividing 2888 by 820, we get 3 with a remainder of 428.
Write down 3 as next digit of the result. 
Result so far: 483.0
If we take 2460 away from 2888, we end up with 428.
Bring next digit (6) of the dividend behind the 428 and repeat the process: 4286 / 820

On to step 7:
820 can be fit into 4286 5 times, resulting in a remainder of 186.
Record the quotient 5 as the next digit in the result. 
Result so far: 4835.0
The remainder is 186 after subtracting 4100 from 4286.
Fetch the next digit (5) from the dividend, attach it to 186 and continue: 1865 / 820

Step 8:
820 can be fit into 1865 2 times, resulting in a remainder of 225.
Put 2 as the next digit of the answer. 
Result so far: 48352.0
Subtract 1640 from 1865 to get 225.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2250, and continue the process.

Moving on to step 9:
The number 820 fits into 2250 2 times, leaving a remainder of 610.
Write down 2 as next digit of the result. 
Result so far: 48352.2
The remainder is 610 after subtracting 1640 from 2250.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6100, and continue the process.

Let's proceed to step 10:
When dividing 6100 by 820, we get 7 with a remainder of 360.
Use 7 as the next digit of our solution. 
Result so far: 48352.27
Subtract 5740 from 6100 to get 360.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3600, and continue the process.

Let's proceed to step 11:
820 can be fit into 3600 4 times, resulting in a remainder of 320.
The next digit of our result is 4. 
Result so far: 48352.274
The remainder is 320 after subtracting 3280 from 3600.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3200, and continue the process.

Going ahead to step 12:
When dividing 3200 by 820, we get 3 with a remainder of 740.
The number 3 becomes the next digit in our result. 
Result so far: 48352.2743
Deduct 2460 from 3200 and we're left with 740.
Since there are no more digits in the dividend, we add a zero to the remainder making it 7400, and continue the process.

Moving on to step 13:
820 goes into 7400 9 times with a remainder of 20.
Write down 9 as next digit of the result. 
Result so far: 48352.27439
Subtract 7380 from 7400 to get 20.
Since there are no more digits in the dividend, we add a zero to the remainder making it 200, and continue the process.

Advancing to step 14:
If we divide 200 by 820, we get 0 and a remainder of 200.
Use 0 as the next digit of our solution. 
Result so far: 48352.27439
The remainder is 200 after subtracting 0 from 200.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2000, and continue the process.

Step 15:
If we divide 2000 by 820, we get 2 and a remainder of 360.
Write down 2 as next digit of the result. 
Result so far: 48352.2743902
Deduct 1640 from 2000 and we're left with 360.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3600, and continue the process.

Let's proceed to step 16:
The number 820 fits into 3600 4 times, leaving a remainder of 320.
The next digit of our result is 4. 
Result so far: 48352.27439024
The remainder is 320 after subtracting 3280 from 3600.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3200, and continue the process.

The final result is 48352.27439024 with a remainder of 3.2e-07.