21429100 divided by 274 
We want to figure out the number of times 21429100 can be divided by 274.

Step 1:
The number 274 fits into 2 0 times, leaving a remainder of 2.
Write down 0 as next digit of the result. 
Result so far: 0.0
Subtract 0 from 2 to get 2.
Append the next digit (1) from the dividend to 2 and continue with: 21 / 274

Going ahead to step 2:
When dividing 21 by 274, we get 0 with a remainder of 21.
Write down 0 as next digit of the result. 
Result so far: 0.0
The remainder is 21 after subtracting 0 from 21.
Include the next digit (4) from the dividend after 21, then repeat: 214 / 274

Moving on to step 3:
274 goes into 214 0 times with a remainder of 214.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Deduct 0 from 214 and we're left with 214.
Include the next digit (2) from the dividend after 214, then repeat: 2142 / 274

Going ahead to step 4:
The number 274 fits into 2142 7 times, leaving a remainder of 224.
Write down 7 as next digit of the result. 
Result so far: 7.0
Subtract 1918 from 2142 to get 224.
Include the next digit (9) from the dividend after 224, then repeat: 2249 / 274

On to step 5:
274 can be fit into 2249 8 times, resulting in a remainder of 57.
Put 8 as the next digit of the answer. 
Result so far: 78.0
Subtract 2192 from 2249 to get 57.
Include the next digit (1) from the dividend after 57, then repeat: 571 / 274

Going ahead to step 6:
274 goes into 571 2 times with a remainder of 23.
Put 2 as the next digit of the answer. 
Result so far: 782.0
Subtract 548 from 571 to get 23.
Append the next digit (0) from the dividend to 23 and continue with: 230 / 274

Moving on to step 7:
The number 274 fits into 230 0 times, leaving a remainder of 230.
Write down 0 as next digit of the result. 
Result so far: 7820.0
Subtracting 0 from 230 leaves us with 230.
Fetch the next digit (0) from the dividend, attach it to 230 and continue: 2300 / 274

Step 8:
When dividing 2300 by 274, we get 8 with a remainder of 108.
Record the quotient 8 as the next digit in the result. 
Result so far: 78208.0
Subtract 2192 from 2300 to get 108.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1080, and continue the process.

Step 9:
274 can be fit into 1080 3 times, resulting in a remainder of 258.
Use 3 as the next digit of our solution. 
Result so far: 78208.3
Deduct 822 from 1080 and we're left with 258.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2580, and continue the process.

Let's proceed to step 10:
2580 divided by 274 is 9 with a remainder of 114.
Record the quotient 9 as the next digit in the result. 
Result so far: 78208.39
If we take 2466 away from 2580, we end up with 114.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1140, and continue the process.

Advancing to step 11:
When dividing 1140 by 274, we get 4 with a remainder of 44.
Use 4 as the next digit of our solution. 
Result so far: 78208.394
If we subtract 1096 from 1140, we get 44.
Since there are no more digits in the dividend, we add a zero to the remainder making it 440, and continue the process.

Going ahead to step 12:
If we divide 440 by 274, we get 1 and a remainder of 166.
Use 1 as the next digit of our solution. 
Result so far: 78208.3941
The remainder is 166 after subtracting 274 from 440.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1660, and continue the process.

Going ahead to step 13:
274 goes into 1660 6 times with a remainder of 16.
Write down 6 as next digit of the result. 
Result so far: 78208.39416
Subtracting 1644 from 1660 leaves us with 16.
Since there are no more digits in the dividend, we add a zero to the remainder making it 160, and continue the process.

Step 14:
274 goes into 160 0 times with a remainder of 160.
The number 0 becomes the next digit in our result. 
Result so far: 78208.39416
The remainder is 160 after subtracting 0 from 160.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1600, and continue the process.

Moving on to step 15:
If we divide 1600 by 274, we get 5 and a remainder of 230.
Record the quotient 5 as the next digit in the result. 
Result so far: 78208.3941605
The remainder is 230 after subtracting 1370 from 1600.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2300, and continue the process.

Step 16:
274 goes into 2300 8 times with a remainder of 108.
The next digit of our result is 8. 
Result so far: 78208.39416058
If we subtract 2192 from 2300, we get 108.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1080, and continue the process.

After the division, we end up with 78208.39416058 and a remainder of 1.08e-07.