We're dividing 111421 by 51 
We want to figure out the number of times 111421 can be divided by 51.

On to step 1:
The number 51 fits into 1 0 times, leaving a remainder of 1.
Use 0 as the next digit of our solution. 
Result so far: 0.0
If we take 0 away from 1, we end up with 1.
Include the next digit (1) from the dividend after 1, then repeat: 11 / 51

Step 2:
When dividing 11 by 51, we get 0 with a remainder of 11.
The next digit of our result is 0. 
Result so far: 0.0
If we subtract 0 from 11, we get 11.
Bring next digit (1) of the dividend behind the 11 and repeat the process: 111 / 51

Going ahead to step 3:
111 divided by 51 is 2 with a remainder of 9.
Record the quotient 2 as the next digit in the result. 
Result so far: 2.0
If we take 102 away from 111, we end up with 9.
Fetch the next digit (4) from the dividend, attach it to 9 and continue: 94 / 51

Step 4:
When dividing 94 by 51, we get 1 with a remainder of 43.
Use 1 as the next digit of our solution. 
Result so far: 21.0
Subtract 51 from 94 to get 43.
Grab the next digit (2) from the dividend, add it to 43, then carry on: 432 / 51

On to step 5:
432 divided by 51 is 8 with a remainder of 24.
The next digit of our result is 8. 
Result so far: 218.0
Deduct 408 from 432 and we're left with 24.
Include the next digit (1) from the dividend after 24, then repeat: 241 / 51

Let's proceed to step 6:
241 divided by 51 is 4 with a remainder of 37.
Record the quotient 4 as the next digit in the result. 
Result so far: 2184.0
If we subtract 204 from 241, we get 37.
Since there are no more digits in the dividend, we add a zero to the remainder making it 370, and continue the process.

Let's proceed to step 7:
When dividing 370 by 51, we get 7 with a remainder of 13.
Write down 7 as next digit of the result. 
Result so far: 2184.7
Deduct 357 from 370 and we're left with 13.
Since there are no more digits in the dividend, we add a zero to the remainder making it 130, and continue the process.

Going ahead to step 8:
130 divided by 51 is 2 with a remainder of 28.
Record the quotient 2 as the next digit in the result. 
Result so far: 2184.72
If we subtract 102 from 130, we get 28.
Since there are no more digits in the dividend, we add a zero to the remainder making it 280, and continue the process.

Step 9:
When dividing 280 by 51, we get 5 with a remainder of 25.
Put 5 as the next digit of the answer. 
Result so far: 2184.725
If we subtract 255 from 280, we get 25.
Since there are no more digits in the dividend, we add a zero to the remainder making it 250, and continue the process.

Advancing to step 10:
The number 51 fits into 250 4 times, leaving a remainder of 46.
The number 4 becomes the next digit in our result. 
Result so far: 2184.7254
If we take 204 away from 250, we end up with 46.
Since there are no more digits in the dividend, we add a zero to the remainder making it 460, and continue the process.

On to step 11:
460 divided by 51 is 9 with a remainder of 1.
Put 9 as the next digit of the answer. 
Result so far: 2184.72549
Deduct 459 from 460 and we're left with 1.
Since there are no more digits in the dividend, we add a zero to the remainder making it 10, and continue the process.

On to step 12:
10 divided by 51 is 0 with a remainder of 10.
The number 0 becomes the next digit in our result. 
Result so far: 2184.72549
Subtract 0 from 10 to get 10.
Since there are no more digits in the dividend, we add a zero to the remainder making it 100, and continue the process.

Step 13:
The number 51 fits into 100 1 times, leaving a remainder of 49.
Write down 1 as next digit of the result. 
Result so far: 2184.7254901
If we subtract 51 from 100, we get 49.
Since there are no more digits in the dividend, we add a zero to the remainder making it 490, and continue the process.

Advancing to step 14:
The number 51 fits into 490 9 times, leaving a remainder of 31.
Put 9 as the next digit of the answer. 
Result so far: 2184.72549019
If we take 459 away from 490, we end up with 31.
Since there are no more digits in the dividend, we add a zero to the remainder making it 310, and continue the process.

The quotient of the division is 2184.72549019, and the remainder is 3.1e-08.