Let's divide 800861 by 51
We're looking to find how many times 51 goes into 800861.

On to step 1:
When dividing 8 by 51, we get 0 with a remainder of 8.
Use 0 as the next digit of our solution. 
Result so far: 0.0
The remainder is 8 after subtracting 0 from 8.
Include the next digit (0) from the dividend after 8, then repeat: 80 / 51

Let's proceed to step 2:
80 divided by 51 is 1 with a remainder of 29.
Write down 1 as next digit of the result. 
Result so far: 1.0
If we take 51 away from 80, we end up with 29.
Bring next digit (0) of the dividend behind the 29 and repeat the process: 290 / 51

Moving on to step 3:
When dividing 290 by 51, we get 5 with a remainder of 35.
The next digit of our result is 5. 
Result so far: 15.0
If we subtract 255 from 290, we get 35.
Include the next digit (8) from the dividend after 35, then repeat: 358 / 51

On to step 4:
When dividing 358 by 51, we get 7 with a remainder of 1.
Write down 7 as next digit of the result. 
Result so far: 157.0
The remainder is 1 after subtracting 357 from 358.
Include the next digit (6) from the dividend after 1, then repeat: 16 / 51

Let's proceed to step 5:
51 goes into 16 0 times with a remainder of 16.
The next digit of our result is 0. 
Result so far: 1570.0
If we subtract 0 from 16, we get 16.
Append the next digit (1) from the dividend to 16 and continue with: 161 / 51

Step 6:
51 goes into 161 3 times with a remainder of 8.
The next digit of our result is 3. 
Result so far: 15703.0
Deduct 153 from 161 and we're left with 8.
Since there are no more digits in the dividend, we add a zero to the remainder making it 80, and continue the process.

On to step 7:
51 can be fit into 80 1 times, resulting in a remainder of 29.
Record the quotient 1 as the next digit in the result. 
Result so far: 15703.1
If we subtract 51 from 80, we get 29.
Since there are no more digits in the dividend, we add a zero to the remainder making it 290, and continue the process.

Moving on to step 8:
290 divided by 51 is 5 with a remainder of 35.
Write down 5 as next digit of the result. 
Result so far: 15703.15
If we take 255 away from 290, we end up with 35.
Since there are no more digits in the dividend, we add a zero to the remainder making it 350, and continue the process.

Moving on to step 9:
350 divided by 51 is 6 with a remainder of 44.
Write down 6 as next digit of the result. 
Result so far: 15703.156
Subtract 306 from 350 to get 44.
Since there are no more digits in the dividend, we add a zero to the remainder making it 440, and continue the process.

On to step 10:
When dividing 440 by 51, we get 8 with a remainder of 32.
Write down 8 as next digit of the result. 
Result so far: 15703.1568
Subtracting 408 from 440 leaves us with 32.
Since there are no more digits in the dividend, we add a zero to the remainder making it 320, and continue the process.

Advancing to step 11:
When dividing 320 by 51, we get 6 with a remainder of 14.
Use 6 as the next digit of our solution. 
Result so far: 15703.15686
Subtract 306 from 320 to get 14.
Since there are no more digits in the dividend, we add a zero to the remainder making it 140, and continue the process.

Advancing to step 12:
51 goes into 140 2 times with a remainder of 38.
Write down 2 as next digit of the result. 
Result so far: 15703.156862
If we take 102 away from 140, we end up with 38.
Since there are no more digits in the dividend, we add a zero to the remainder making it 380, and continue the process.

Let's proceed to step 13:
The number 51 fits into 380 7 times, leaving a remainder of 23.
Record the quotient 7 as the next digit in the result. 
Result so far: 15703.1568627
If we subtract 357 from 380, we get 23.
Since there are no more digits in the dividend, we add a zero to the remainder making it 230, and continue the process.

On to step 14:
230 divided by 51 is 4 with a remainder of 26.
The number 4 becomes the next digit in our result. 
Result so far: 15703.15686274
Subtract 204 from 230 to get 26.
Since there are no more digits in the dividend, we add a zero to the remainder making it 260, and continue the process.

The final outcome is 15703.15686274, with a leftover of 2.6e-08.