We divide 21120615 by 869
We want to divide 21120615 by 869.

Advancing to step 1:
The number 869 fits into 2 0 times, leaving a remainder of 2.
The next digit of our result is 0. 
Result so far: 0.0
Deduct 0 from 2 and we're left with 2.
Fetch the next digit (1) from the dividend, attach it to 2 and continue: 21 / 869

Moving on to step 2:
21 divided by 869 is 0 with a remainder of 21.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Deduct 0 from 21 and we're left with 21.
Bring next digit (1) of the dividend behind the 21 and repeat the process: 211 / 869

Let's proceed to step 3:
The number 869 fits into 211 0 times, leaving a remainder of 211.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
If we take 0 away from 211, we end up with 211.
Append the next digit (2) from the dividend to 211 and continue with: 2112 / 869

Going ahead to step 4:
If we divide 2112 by 869, we get 2 and a remainder of 374.
Write down 2 as next digit of the result. 
Result so far: 2.0
If we subtract 1738 from 2112, we get 374.
Take the next digit (0) from the dividend and append it to 374, then repeat: 3740 / 869

Moving on to step 5:
When dividing 3740 by 869, we get 4 with a remainder of 264.
Record the quotient 4 as the next digit in the result. 
Result so far: 24.0
The remainder is 264 after subtracting 3476 from 3740.
Append the next digit (6) from the dividend to 264 and continue with: 2646 / 869

On to step 6:
The number 869 fits into 2646 3 times, leaving a remainder of 39.
Write down 3 as next digit of the result. 
Result so far: 243.0
If we take 2607 away from 2646, we end up with 39.
Grab the next digit (1) from the dividend, add it to 39, then carry on: 391 / 869

Step 7:
869 goes into 391 0 times with a remainder of 391.
The number 0 becomes the next digit in our result. 
Result so far: 2430.0
Subtract 0 from 391 to get 391.
Take the next digit (5) from the dividend and append it to 391, then repeat: 3915 / 869

On to step 8:
869 can be fit into 3915 4 times, resulting in a remainder of 439.
Record the quotient 4 as the next digit in the result. 
Result so far: 24304.0
Subtract 3476 from 3915 to get 439.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4390, and continue the process.

Going ahead to step 9:
869 goes into 4390 5 times with a remainder of 45.
Use 5 as the next digit of our solution. 
Result so far: 24304.5
Subtracting 4345 from 4390 leaves us with 45.
Since there are no more digits in the dividend, we add a zero to the remainder making it 450, and continue the process.

On to step 10:
The number 869 fits into 450 0 times, leaving a remainder of 450.
Put 0 as the next digit of the answer. 
Result so far: 24304.5
Deduct 0 from 450 and we're left with 450.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4500, and continue the process.

Going ahead to step 11:
869 can be fit into 4500 5 times, resulting in a remainder of 155.
The number 5 becomes the next digit in our result. 
Result so far: 24304.505
The remainder is 155 after subtracting 4345 from 4500.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1550, and continue the process.

Moving on to step 12:
The number 869 fits into 1550 1 times, leaving a remainder of 681.
The next digit of our result is 1. 
Result so far: 24304.5051
Deduct 869 from 1550 and we're left with 681.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6810, and continue the process.

Step 13:
869 goes into 6810 7 times with a remainder of 727.
Record the quotient 7 as the next digit in the result. 
Result so far: 24304.50517
The remainder is 727 after subtracting 6083 from 6810.
Since there are no more digits in the dividend, we add a zero to the remainder making it 7270, and continue the process.

Advancing to step 14:
7270 divided by 869 is 8 with a remainder of 318.
Put 8 as the next digit of the answer. 
Result so far: 24304.505178
Subtract 6952 from 7270 to get 318.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3180, and continue the process.

Going ahead to step 15:
If we divide 3180 by 869, we get 3 and a remainder of 573.
Record the quotient 3 as the next digit in the result. 
Result so far: 24304.5051783
Deduct 2607 from 3180 and we're left with 573.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5730, and continue the process.

Advancing to step 16:
869 can be fit into 5730 6 times, resulting in a remainder of 516.
Write down 6 as next digit of the result. 
Result so far: 24304.50517836
If we subtract 5214 from 5730, we get 516.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5160, and continue the process.

Our division results in 24304.50517836 with a remaining 5.16e-07.