We divide 51865490 by 789
We want to figure out the number of times 51865490 can be divided by 789.

Let's proceed to step 1:
789 goes into 5 0 times with a remainder of 5.
Put 0 as the next digit of the answer. 
Result so far: 0.0
If we take 0 away from 5, we end up with 5.
Grab the next digit (1) from the dividend, add it to 5, then carry on: 51 / 789

Advancing to step 2:
The number 789 fits into 51 0 times, leaving a remainder of 51.
The next digit of our result is 0. 
Result so far: 0.0
Deduct 0 from 51 and we're left with 51.
Bring next digit (8) of the dividend behind the 51 and repeat the process: 518 / 789

On to step 3:
When dividing 518 by 789, we get 0 with a remainder of 518.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Subtracting 0 from 518 leaves us with 518.
Append the next digit (6) from the dividend to 518 and continue with: 5186 / 789

Moving on to step 4:
789 can be fit into 5186 6 times, resulting in a remainder of 452.
Write down 6 as next digit of the result. 
Result so far: 6.0
Subtract 4734 from 5186 to get 452.
Include the next digit (5) from the dividend after 452, then repeat: 4525 / 789

Advancing to step 5:
The number 789 fits into 4525 5 times, leaving a remainder of 580.
Record the quotient 5 as the next digit in the result. 
Result so far: 65.0
If we take 3945 away from 4525, we end up with 580.
Append the next digit (4) from the dividend to 580 and continue with: 5804 / 789

Let's proceed to step 6:
5804 divided by 789 is 7 with a remainder of 281.
The number 7 becomes the next digit in our result. 
Result so far: 657.0
If we take 5523 away from 5804, we end up with 281.
Fetch the next digit (9) from the dividend, attach it to 281 and continue: 2819 / 789

Going ahead to step 7:
2819 divided by 789 is 3 with a remainder of 452.
The next digit of our result is 3. 
Result so far: 6573.0
If we subtract 2367 from 2819, we get 452.
Append the next digit (0) from the dividend to 452 and continue with: 4520 / 789

Let's proceed to step 8:
If we divide 4520 by 789, we get 5 and a remainder of 575.
The next digit of our result is 5. 
Result so far: 65735.0
The remainder is 575 after subtracting 3945 from 4520.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5750, and continue the process.

Going ahead to step 9:
789 can be fit into 5750 7 times, resulting in a remainder of 227.
The next digit of our result is 7. 
Result so far: 65735.7
Subtract 5523 from 5750 to get 227.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2270, and continue the process.

Advancing to step 10:
789 can be fit into 2270 2 times, resulting in a remainder of 692.
Use 2 as the next digit of our solution. 
Result so far: 65735.72
If we take 1578 away from 2270, we end up with 692.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6920, and continue the process.

Step 11:
When dividing 6920 by 789, we get 8 with a remainder of 608.
Use 8 as the next digit of our solution. 
Result so far: 65735.728
If we subtract 6312 from 6920, we get 608.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6080, and continue the process.

Moving on to step 12:
789 can be fit into 6080 7 times, resulting in a remainder of 557.
The next digit of our result is 7. 
Result so far: 65735.7287
If we subtract 5523 from 6080, we get 557.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5570, and continue the process.

Moving on to step 13:
The number 789 fits into 5570 7 times, leaving a remainder of 47.
Record the quotient 7 as the next digit in the result. 
Result so far: 65735.72877
The remainder is 47 after subtracting 5523 from 5570.
Since there are no more digits in the dividend, we add a zero to the remainder making it 470, and continue the process.

The final result is 65735.72877 with a remainder of 4.7e-05.