21420715 divided by 278 
Our goal is to divide 21420715 by 278.

Let's proceed to step 1:
If we divide 2 by 278, we get 0 and a remainder of 2.
The next digit of our result is 0. 
Result so far: 0.0
If we subtract 0 from 2, we get 2.
Take the next digit (1) from the dividend and append it to 2, then repeat: 21 / 278

On to step 2:
21 divided by 278 is 0 with a remainder of 21.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Subtracting 0 from 21 leaves us with 21.
Grab the next digit (4) from the dividend, add it to 21, then carry on: 214 / 278

On to step 3:
If we divide 214 by 278, we get 0 and a remainder of 214.
Write down 0 as next digit of the result. 
Result so far: 0.0
If we subtract 0 from 214, we get 214.
Take the next digit (2) from the dividend and append it to 214, then repeat: 2142 / 278

Advancing to step 4:
When dividing 2142 by 278, we get 7 with a remainder of 196.
Use 7 as the next digit of our solution. 
Result so far: 7.0
Subtract 1946 from 2142 to get 196.
Fetch the next digit (0) from the dividend, attach it to 196 and continue: 1960 / 278

On to step 5:
278 goes into 1960 7 times with a remainder of 14.
Write down 7 as next digit of the result. 
Result so far: 77.0
Subtract 1946 from 1960 to get 14.
Fetch the next digit (7) from the dividend, attach it to 14 and continue: 147 / 278

Going ahead to step 6:
If we divide 147 by 278, we get 0 and a remainder of 147.
The number 0 becomes the next digit in our result. 
Result so far: 770.0
Subtract 0 from 147 to get 147.
Append the next digit (1) from the dividend to 147 and continue with: 1471 / 278

Advancing to step 7:
If we divide 1471 by 278, we get 5 and a remainder of 81.
Write down 5 as next digit of the result. 
Result so far: 7705.0
If we take 1390 away from 1471, we end up with 81.
Bring next digit (5) of the dividend behind the 81 and repeat the process: 815 / 278

Step 8:
278 can be fit into 815 2 times, resulting in a remainder of 259.
Use 2 as the next digit of our solution. 
Result so far: 77052.0
Subtract 556 from 815 to get 259.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2590, and continue the process.

Moving on to step 9:
The number 278 fits into 2590 9 times, leaving a remainder of 88.
Use 9 as the next digit of our solution. 
Result so far: 77052.9
If we subtract 2502 from 2590, we get 88.
Since there are no more digits in the dividend, we add a zero to the remainder making it 880, and continue the process.

Going ahead to step 10:
When dividing 880 by 278, we get 3 with a remainder of 46.
Write down 3 as next digit of the result. 
Result so far: 77052.93
Subtracting 834 from 880 leaves us 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.

Step 11:
The number 278 fits into 460 1 times, leaving a remainder of 182.
Put 1 as the next digit of the answer. 
Result so far: 77052.931
The remainder is 182 after subtracting 278 from 460.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1820, and continue the process.

Let's proceed to step 12:
If we divide 1820 by 278, we get 6 and a remainder of 152.
Record the quotient 6 as the next digit in the result. 
Result so far: 77052.9316
Deduct 1668 from 1820 and we're left with 152.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1520, and continue the process.

Step 13:
The number 278 fits into 1520 5 times, leaving a remainder of 130.
Record the quotient 5 as the next digit in the result. 
Result so far: 77052.93165
The remainder is 130 after subtracting 1390 from 1520.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1300, and continue the process.

Going ahead to step 14:
278 can be fit into 1300 4 times, resulting in a remainder of 188.
The next digit of our result is 4. 
Result so far: 77052.931654
If we subtract 1112 from 1300, we get 188.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1880, and continue the process.

Going ahead to step 15:
278 goes into 1880 6 times with a remainder of 212.
Put 6 as the next digit of the answer. 
Result so far: 77052.9316546
If we take 1668 away from 1880, we end up with 212.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2120, and continue the process.

Moving on to step 16:
If we divide 2120 by 278, we get 7 and a remainder of 174.
Put 7 as the next digit of the answer. 
Result so far: 77052.93165467
Subtract 1946 from 2120 to get 174.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1740, and continue the process.

Our division results in 77052.93165467 with a remaining 1.74e-07.