We look at the division of 16521421 by 629 
We want to divide 16521421 by 629.

Moving on to step 1:
629 can be fit into 1 0 times, resulting in a remainder of 1.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
The remainder is 1 after subtracting 0 from 1.
Grab the next digit (6) from the dividend, add it to 1, then carry on: 16 / 629

Step 2:
If we divide 16 by 629, we get 0 and a remainder of 16.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Subtracting 0 from 16 leaves us with 16.
Fetch the next digit (5) from the dividend, attach it to 16 and continue: 165 / 629

Step 3:
If we divide 165 by 629, we get 0 and a remainder of 165.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
The remainder is 165 after subtracting 0 from 165.
Include the next digit (2) from the dividend after 165, then repeat: 1652 / 629

Let's proceed to step 4:
1652 divided by 629 is 2 with a remainder of 394.
Use 2 as the next digit of our solution. 
Result so far: 2.0
Deduct 1258 from 1652 and we're left with 394.
Include the next digit (1) from the dividend after 394, then repeat: 3941 / 629

Moving on to step 5:
If we divide 3941 by 629, we get 6 and a remainder of 167.
Use 6 as the next digit of our solution. 
Result so far: 26.0
Deduct 3774 from 3941 and we're left with 167.
Include the next digit (4) from the dividend after 167, then repeat: 1674 / 629

Step 6:
629 can be fit into 1674 2 times, resulting in a remainder of 416.
Use 2 as the next digit of our solution. 
Result so far: 262.0
The remainder is 416 after subtracting 1258 from 1674.
Append the next digit (2) from the dividend to 416 and continue with: 4162 / 629

Going ahead to step 7:
629 can be fit into 4162 6 times, resulting in a remainder of 388.
Use 6 as the next digit of our solution. 
Result so far: 2626.0
Subtract 3774 from 4162 to get 388.
Bring next digit (1) of the dividend behind the 388 and repeat the process: 3881 / 629

Advancing to step 8:
The number 629 fits into 3881 6 times, leaving a remainder of 107.
Record the quotient 6 as the next digit in the result. 
Result so far: 26266.0
Subtract 3774 from 3881 to get 107.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1070, and continue the process.

Going ahead to step 9:
1070 divided by 629 is 1 with a remainder of 441.
Write down 1 as next digit of the result. 
Result so far: 26266.1
The remainder is 441 after subtracting 629 from 1070.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4410, and continue the process.

Let's proceed to step 10:
If we divide 4410 by 629, we get 7 and a remainder of 7.
The number 7 becomes the next digit in our result. 
Result so far: 26266.17
The remainder is 7 after subtracting 4403 from 4410.
Since there are no more digits in the dividend, we add a zero to the remainder making it 70, and continue the process.

Going ahead to step 11:
When dividing 70 by 629, we get 0 with a remainder of 70.
Record the quotient 0 as the next digit in the result. 
Result so far: 26266.17
Subtract 0 from 70 to get 70.
Since there are no more digits in the dividend, we add a zero to the remainder making it 700, and continue the process.

Let's proceed to step 12:
700 divided by 629 is 1 with a remainder of 71.
Put 1 as the next digit of the answer. 
Result so far: 26266.1701
The remainder is 71 after subtracting 629 from 700.
Since there are no more digits in the dividend, we add a zero to the remainder making it 710, and continue the process.

Let's proceed to step 13:
When dividing 710 by 629, we get 1 with a remainder of 81.
Put 1 as the next digit of the answer. 
Result so far: 26266.17011
If we subtract 629 from 710, we get 81.
Since there are no more digits in the dividend, we add a zero to the remainder making it 810, and continue the process.

Our division results in 26266.17011 with a remaining 8.1e-05.