We look at the division of 21534680 by 51 
Our goal is to divide 21534680 by 51.

Moving on to step 1:
When dividing 2 by 51, we get 0 with a remainder of 2.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
If we take 0 away from 2, we end up with 2.
Grab the next digit (1) from the dividend, add it to 2, then carry on: 21 / 51

Step 2:
When dividing 21 by 51, we get 0 with a remainder of 21.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Subtract 0 from 21 to get 21.
Fetch the next digit (5) from the dividend, attach it to 21 and continue: 215 / 51

Moving on to step 3:
215 divided by 51 is 4 with a remainder of 11.
Write down 4 as next digit of the result. 
Result so far: 4.0
Subtracting 204 from 215 leaves us with 11.
Include the next digit (3) from the dividend after 11, then repeat: 113 / 51

Let's proceed to step 4:
The number 51 fits into 113 2 times, leaving a remainder of 11.
Use 2 as the next digit of our solution. 
Result so far: 42.0
Deduct 102 from 113 and we're left with 11.
Append the next digit (4) from the dividend to 11 and continue with: 114 / 51

Advancing to step 5:
51 goes into 114 2 times with a remainder of 12.
Put 2 as the next digit of the answer. 
Result so far: 422.0
Subtracting 102 from 114 leaves us with 12.
Append the next digit (6) from the dividend to 12 and continue with: 126 / 51

Advancing to step 6:
51 can be fit into 126 2 times, resulting in a remainder of 24.
Put 2 as the next digit of the answer. 
Result so far: 4222.0
If we subtract 102 from 126, we get 24.
Append the next digit (8) from the dividend to 24 and continue with: 248 / 51

Moving on to step 7:
51 goes into 248 4 times with a remainder of 44.
Put 4 as the next digit of the answer. 
Result so far: 42224.0
The remainder is 44 after subtracting 204 from 248.
Take the next digit (0) from the dividend and append it to 44, then repeat: 440 / 51

On to step 8:
The number 51 fits into 440 8 times, leaving a remainder of 32.
Write down 8 as next digit of the result. 
Result so far: 422248.0
Subtract 408 from 440 to get 32.
Since there are no more digits in the dividend, we add a zero to the remainder making it 320, and continue the process.

Going ahead to step 9:
51 can be fit into 320 6 times, resulting in a remainder of 14.
The next digit of our result is 6. 
Result so far: 422248.6
Deduct 306 from 320 and we're left 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.

Step 10:
51 can be fit into 140 2 times, resulting in a remainder of 38.
Put 2 as the next digit of the answer. 
Result so far: 422248.62
The remainder is 38 after subtracting 102 from 140.
Since there are no more digits in the dividend, we add a zero to the remainder making it 380, and continue the process.

Advancing to step 11:
380 divided by 51 is 7 with a remainder of 23.
Write down 7 as next digit of the result. 
Result so far: 422248.627
Subtract 357 from 380 to get 23.
Since there are no more digits in the dividend, we add a zero to the remainder making it 230, and continue the process.

Let's proceed to step 12:
When dividing 230 by 51, we get 4 with a remainder of 26.
The next digit of our result is 4. 
Result so far: 422248.6274
If we subtract 204 from 230, we get 26.
Since there are no more digits in the dividend, we add a zero to the remainder making it 260, and continue the process.

Advancing to step 13:
51 goes into 260 5 times with a remainder of 5.
Write down 5 as next digit of the result. 
Result so far: 422248.62745
If we subtract 255 from 260, we get 5.
Since there are no more digits in the dividend, we add a zero to the remainder making it 50, and continue the process.

Let's proceed to step 14:
If we divide 50 by 51, we get 0 and a remainder of 50.
Write down 0 as next digit of the result. 
Result so far: 422248.62745
If we subtract 0 from 50, we get 50.
Since there are no more digits in the dividend, we add a zero to the remainder making it 500, and continue the process.

Let's proceed to step 15:
The number 51 fits into 500 9 times, leaving a remainder of 41.
Write down 9 as next digit of the result. 
Result so far: 422248.6274509
The remainder is 41 after subtracting 459 from 500.
Since there are no more digits in the dividend, we add a zero to the remainder making it 410, and continue the process.

Going ahead to step 16:
51 can be fit into 410 8 times, resulting in a remainder of 2.
Record the quotient 8 as the next digit in the result. 
Result so far: 422248.62745098
Subtract 408 from 410 to get 2.
Since there are no more digits in the dividend, we add a zero to the remainder making it 20, and continue the process.

After the division, we end up with 422248.62745098 and a remainder of 2e-09.