64907561 ÷ 838 
Our goal is to divide 64907561 by 838.

Advancing to step 1:
838 can be fit into 6 0 times, resulting in a remainder of 6.
The next digit of our result is 0. 
Result so far: 0.0
If we subtract 0 from 6, we get 6.
Include the next digit (4) from the dividend after 6, then repeat: 64 / 838

Advancing to step 2:
If we divide 64 by 838, we get 0 and a remainder of 64.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Subtracting 0 from 64 leaves us with 64.
Include the next digit (9) from the dividend after 64, then repeat: 649 / 838

Let's proceed to step 3:
649 divided by 838 is 0 with a remainder of 649.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
If we subtract 0 from 649, we get 649.
Take the next digit (0) from the dividend and append it to 649, then repeat: 6490 / 838

Going ahead to step 4:
838 can be fit into 6490 7 times, resulting in a remainder of 624.
Write down 7 as next digit of the result. 
Result so far: 7.0
If we subtract 5866 from 6490, we get 624.
Append the next digit (7) from the dividend to 624 and continue with: 6247 / 838

On to step 5:
6247 divided by 838 is 7 with a remainder of 381.
The next digit of our result is 7. 
Result so far: 77.0
Subtract 5866 from 6247 to get 381.
Include the next digit (5) from the dividend after 381, then repeat: 3815 / 838

Step 6:
If we divide 3815 by 838, we get 4 and a remainder of 463.
The next digit of our result is 4. 
Result so far: 774.0
The remainder is 463 after subtracting 3352 from 3815.
Fetch the next digit (6) from the dividend, attach it to 463 and continue: 4636 / 838

Let's proceed to step 7:
The number 838 fits into 4636 5 times, leaving a remainder of 446.
Use 5 as the next digit of our solution. 
Result so far: 7745.0
If we subtract 4190 from 4636, we get 446.
Include the next digit (1) from the dividend after 446, then repeat: 4461 / 838

On to step 8:
838 goes into 4461 5 times with a remainder of 271.
The next digit of our result is 5. 
Result so far: 77455.0
The remainder is 271 after subtracting 4190 from 4461.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2710, and continue the process.

Moving on to step 9:
2710 divided by 838 is 3 with a remainder of 196.
Write down 3 as next digit of the result. 
Result so far: 77455.3
Subtracting 2514 from 2710 leaves us with 196.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1960, and continue the process.

Going ahead to step 10:
838 goes into 1960 2 times with a remainder of 284.
Write down 2 as next digit of the result. 
Result so far: 77455.32
Subtracting 1676 from 1960 leaves us with 284.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2840, and continue the process.

Moving on to step 11:
2840 divided by 838 is 3 with a remainder of 326.
Record the quotient 3 as the next digit in the result. 
Result so far: 77455.323
Deduct 2514 from 2840 and we're left with 326.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3260, and continue the process.

Let's proceed to step 12:
838 can be fit into 3260 3 times, resulting in a remainder of 746.
Record the quotient 3 as the next digit in the result. 
Result so far: 77455.3233
If we subtract 2514 from 3260, we get 746.
Since there are no more digits in the dividend, we add a zero to the remainder making it 7460, and continue the process.

After the division, we end up with 77455.3233 and a remainder of 0.00746.