Let's divide 869851 by 10
We want to figure out the number of times 869851 can be divided by 10.

Moving on to step 1:
When dividing 8 by 10, we get 0 with a remainder of 8.
Write down 0 as next digit of the result. 
Result so far: 0.0
If we subtract 0 from 8, we get 8.
Grab the next digit (6) from the dividend, add it to 8, then carry on: 86 / 10

On to step 2:
86 divided by 10 is 8 with a remainder of 6.
Use 8 as the next digit of our solution. 
Result so far: 8.0
If we subtract 80 from 86, we get 6.
Include the next digit (9) from the dividend after 6, then repeat: 69 / 10

Going ahead to step 3:
69 divided by 10 is 6 with a remainder of 9.
Use 6 as the next digit of our solution. 
Result so far: 86.0
Subtract 60 from 69 to get 9.
Include the next digit (8) from the dividend after 9, then repeat: 98 / 10

Advancing to step 4:
The number 10 fits into 98 9 times, leaving a remainder of 8.
Record the quotient 9 as the next digit in the result. 
Result so far: 869.0
Subtracting 90 from 98 leaves us with 8.
Include the next digit (5) from the dividend after 8, then repeat: 85 / 10

Step 5:
85 divided by 10 is 8 with a remainder of 5.
Write down 8 as next digit of the result. 
Result so far: 8698.0
The remainder is 5 after subtracting 80 from 85.
Grab the next digit (1) from the dividend, add it to 5, then carry on: 51 / 10

Let's proceed to step 6:
10 can be fit into 51 5 times, resulting in a remainder of 1.
Write down 5 as next digit of the result. 
Result so far: 86985.0
Subtracting 50 from 51 leaves us with 1.
Since there are no more digits in the dividend, we add a zero to the remainder making it 10, and continue the process.

Let's proceed to step 7:
If we divide 10 by 10, we get 1 and a remainder of 0.
The next digit of our result is 1. 
Result so far: 86985.1
Subtract 10 from 10 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.

Going ahead to step 8:
If we divide 0 by 10, we get 0 and a remainder of 0.
Write down 0 as next digit of the result. 
Result so far: 86985.1
If we take 0 away from 0, we end up 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.

On to step 9:
If we divide 0 by 10, we get 0 and a remainder of 0.
Put 0 as the next digit of the answer. 
Result so far: 86985.1
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.

In conclusion, the division gives 86985.1 with a balance of 0.0.