Let's divide 210642 by 1
We want to figure out the number of times 210642 can be divided by 1.

Step 1:
If we divide 2 by 1, we get 2 and a remainder of 0.
Write down 2 as next digit of the result. 
Result so far: 2.0
If we take 2 away from 2, we end up with 0.
Grab the next digit (1) from the dividend, add it to 0, then carry on: 1 / 1

Advancing to step 2:
1 divided by 1 is 1 with a remainder of 0.
Put 1 as the next digit of the answer. 
Result so far: 21.0
Subtracting 1 from 1 leaves us with 0.
Append the next digit (0) from the dividend to 0 and continue with: 0 / 1

Advancing to step 3:
1 goes into 0 0 times with a remainder of 0.
Write down 0 as next digit of the result. 
Result so far: 210.0
The remainder is 0 after subtracting 0 from 0.
Bring next digit (6) of the dividend behind the 0 and repeat the process: 6 / 1

Let's proceed to step 4:
6 divided by 1 is 6 with a remainder of 0.
Use 6 as the next digit of our solution. 
Result so far: 2106.0
If we subtract 6 from 6, we get 0.
Append the next digit (4) from the dividend to 0 and continue with: 4 / 1

Step 5:
If we divide 4 by 1, we get 4 and a remainder of 0.
Write down 4 as next digit of the result. 
Result so far: 21064.0
Deduct 4 from 4 and we're left with 0.
Bring next digit (2) of the dividend behind the 0 and repeat the process: 2 / 1

Step 6:
When dividing 2 by 1, we get 2 with a remainder of 0.
Put 2 as the next digit of the answer. 
Result so far: 210642.0
If we take 2 away from 2, 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.

Going ahead to step 7:
When dividing 0 by 1, we get 0 with a remainder of 0.
Put 0 as the next digit of the answer. 
Result so far: 210642.0
The remainder is 0 after subtracting 0 from 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

Moving on to step 8:
When dividing 0 by 1, we get 0 with a remainder of 0.
Record the quotient 0 as the next digit in the result. 
Result so far: 210642.0
Deduct 0 from 0 and we're left 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.

After the division, we end up with 210642.0 and a remainder of 0.0.