We're dividing 21538434 by 877 
We're looking to find how many times 877 goes into 21538434.

Moving on to step 1:
If we divide 2 by 877, we get 0 and a remainder of 2.
The next digit of our result is 0. 
Result so far: 0.0
Subtract 0 from 2 to get 2.
Grab the next digit (1) from the dividend, add it to 2, then carry on: 21 / 877

Let's proceed to step 2:
877 can be fit into 21 0 times, resulting in a remainder of 21.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Subtract 0 from 21 to get 21.
Include the next digit (5) from the dividend after 21, then repeat: 215 / 877

On to step 3:
If we divide 215 by 877, we get 0 and a remainder of 215.
Write down 0 as next digit of the result. 
Result so far: 0.0
If we take 0 away from 215, we end up with 215.
Grab the next digit (3) from the dividend, add it to 215, then carry on: 2153 / 877

Step 4:
When dividing 2153 by 877, we get 2 with a remainder of 399.
Write down 2 as next digit of the result. 
Result so far: 2.0
Subtract 1754 from 2153 to get 399.
Include the next digit (8) from the dividend after 399, then repeat: 3998 / 877

Moving on to step 5:
When dividing 3998 by 877, we get 4 with a remainder of 490.
Put 4 as the next digit of the answer. 
Result so far: 24.0
If we subtract 3508 from 3998, we get 490.
Append the next digit (4) from the dividend to 490 and continue with: 4904 / 877

Step 6:
The number 877 fits into 4904 5 times, leaving a remainder of 519.
The next digit of our result is 5. 
Result so far: 245.0
The remainder is 519 after subtracting 4385 from 4904.
Bring next digit (3) of the dividend behind the 519 and repeat the process: 5193 / 877

Advancing to step 7:
If we divide 5193 by 877, we get 5 and a remainder of 808.
Put 5 as the next digit of the answer. 
Result so far: 2455.0
If we subtract 4385 from 5193, we get 808.
Grab the next digit (4) from the dividend, add it to 808, then carry on: 8084 / 877

Step 8:
8084 divided by 877 is 9 with a remainder of 191.
The number 9 becomes the next digit in our result. 
Result so far: 24559.0
If we subtract 7893 from 8084, we get 191.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1910, and continue the process.

On to step 9:
877 goes into 1910 2 times with a remainder of 156.
Put 2 as the next digit of the answer. 
Result so far: 24559.2
Subtract 1754 from 1910 to get 156.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1560, and continue the process.

On to step 10:
When dividing 1560 by 877, we get 1 with a remainder of 683.
Use 1 as the next digit of our solution. 
Result so far: 24559.21
If we take 877 away from 1560, we end up with 683.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6830, and continue the process.

Step 11:
If we divide 6830 by 877, we get 7 and a remainder of 691.
Put 7 as the next digit of the answer. 
Result so far: 24559.217
If we subtract 6139 from 6830, we get 691.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6910, and continue the process.

Advancing to step 12:
The number 877 fits into 6910 7 times, leaving a remainder of 771.
The next digit of our result is 7. 
Result so far: 24559.2177
The remainder is 771 after subtracting 6139 from 6910.
Since there are no more digits in the dividend, we add a zero to the remainder making it 7710, and continue the process.

After the division, we end up with 24559.2177 and a remainder of 0.00771.