We look at the division of 2842616 by 21 
We want to divide 2842616 by 21.

Going ahead to step 1:
If we divide 2 by 21, we get 0 and a remainder of 2.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Subtracting 0 from 2 leaves us with 2.
Take the next digit (8) from the dividend and append it to 2, then repeat: 28 / 21

Advancing to step 2:
21 goes into 28 1 times with a remainder of 7.
Put 1 as the next digit of the answer. 
Result so far: 1.0
Subtracting 21 from 28 leaves us with 7.
Take the next digit (4) from the dividend and append it to 7, then repeat: 74 / 21

Going ahead to step 3:
74 divided by 21 is 3 with a remainder of 11.
Record the quotient 3 as the next digit in the result. 
Result so far: 13.0
If we subtract 63 from 74, we get 11.
Append the next digit (2) from the dividend to 11 and continue with: 112 / 21

Step 4:
112 divided by 21 is 5 with a remainder of 7.
The next digit of our result is 5. 
Result so far: 135.0
If we take 105 away from 112, we end up with 7.
Take the next digit (6) from the dividend and append it to 7, then repeat: 76 / 21

On to step 5:
76 divided by 21 is 3 with a remainder of 13.
Use 3 as the next digit of our solution. 
Result so far: 1353.0
Subtracting 63 from 76 leaves us with 13.
Include the next digit (1) from the dividend after 13, then repeat: 131 / 21

On to step 6:
The number 21 fits into 131 6 times, leaving a remainder of 5.
Record the quotient 6 as the next digit in the result. 
Result so far: 13536.0
Deduct 126 from 131 and we're left with 5.
Grab the next digit (6) from the dividend, add it to 5, then carry on: 56 / 21

On to step 7:
When dividing 56 by 21, we get 2 with a remainder of 14.
Record the quotient 2 as the next digit in the result. 
Result so far: 135362.0
Subtracting 42 from 56 leaves us with 14.
Since there are no more digits in the dividend, we add a zero to the remainder making it 140, and continue the process.

Moving on to step 8:
When dividing 140 by 21, we get 6 with a remainder of 14.
Write down 6 as next digit of the result. 
Result so far: 135362.6
Subtract 126 from 140 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 9:
140 divided by 21 is 6 with a remainder of 14.
The next digit of our result is 6. 
Result so far: 135362.66
If we subtract 126 from 140, we 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.

The quotient of the division is 135362.66, and the remainder is 0.014.