We look at the division of 21016000 by 125 
We want to figure out the number of times 21016000 can be divided by 125.

On to step 1:
125 goes into 2 0 times with a remainder of 2.
Write down 0 as next digit of the result. 
Result so far: 0.0
Subtract 0 from 2 to get 2.
Take the next digit (1) from the dividend and append it to 2, then repeat: 21 / 125

Going ahead to step 2:
21 divided by 125 is 0 with a remainder of 21.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Subtracting 0 from 21 leaves us with 21.
Fetch the next digit (0) from the dividend, attach it to 21 and continue: 210 / 125

Let's proceed to step 3:
If we divide 210 by 125, we get 1 and a remainder of 85.
Put 1 as the next digit of the answer. 
Result so far: 1.0
Subtracting 125 from 210 leaves us with 85.
Take the next digit (1) from the dividend and append it to 85, then repeat: 851 / 125

Moving on to step 4:
When dividing 851 by 125, we get 6 with a remainder of 101.
The next digit of our result is 6. 
Result so far: 16.0
Deduct 750 from 851 and we're left with 101.
Bring next digit (6) of the dividend behind the 101 and repeat the process: 1016 / 125

Advancing to step 5:
The number 125 fits into 1016 8 times, leaving a remainder of 16.
Use 8 as the next digit of our solution. 
Result so far: 168.0
Subtracting 1000 from 1016 leaves us with 16.
Bring next digit (0) of the dividend behind the 16 and repeat the process: 160 / 125

Moving on to step 6:
The number 125 fits into 160 1 times, leaving a remainder of 35.
Put 1 as the next digit of the answer. 
Result so far: 1681.0
If we subtract 125 from 160, we get 35.
Include the next digit (0) from the dividend after 35, then repeat: 350 / 125

Going ahead to step 7:
When dividing 350 by 125, we get 2 with a remainder of 100.
Put 2 as the next digit of the answer. 
Result so far: 16812.0
Subtract 250 from 350 to get 100.
Grab the next digit (0) from the dividend, add it to 100, then carry on: 1000 / 125

On to step 8:
1000 divided by 125 is 8 with a remainder of 0.
The next digit of our result is 8. 
Result so far: 168128.0
Deduct 1000 from 1000 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.

Step 9:
If we divide 0 by 125, we get 0 and a remainder of 0.
Write down 0 as next digit of the result. 
Result so far: 168128.0
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.

On to step 10:
When dividing 0 by 125, we get 0 with a remainder of 0.
Put 0 as the next digit of the answer. 
Result so far: 168128.0
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.

After the division, we end up with 168128.0 and a remainder of 0.0.