21422030 divided by 402 
We want to figure out the number of times 21422030 can be divided by 402.

Advancing to step 1:
When dividing 2 by 402, we get 0 with 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.
Bring next digit (1) of the dividend behind the 2 and repeat the process: 21 / 402

Advancing to step 2:
When dividing 21 by 402, we get 0 with a remainder of 21.
The next digit of our result is 0. 
Result so far: 0.0
Subtract 0 from 21 to get 21.
Bring next digit (4) of the dividend behind the 21 and repeat the process: 214 / 402

Moving on to step 3:
When dividing 214 by 402, we get 0 with a remainder of 214.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
If we take 0 away from 214, we end up with 214.
Bring next digit (2) of the dividend behind the 214 and repeat the process: 2142 / 402

Let's proceed to step 4:
2142 divided by 402 is 5 with a remainder of 132.
Write down 5 as next digit of the result. 
Result so far: 5.0
Deduct 2010 from 2142 and we're left with 132.
Append the next digit (2) from the dividend to 132 and continue with: 1322 / 402

Moving on to step 5:
402 can be fit into 1322 3 times, resulting in a remainder of 116.
Write down 3 as next digit of the result. 
Result so far: 53.0
If we take 1206 away from 1322, we end up with 116.
Take the next digit (0) from the dividend and append it to 116, then repeat: 1160 / 402

Let's proceed to step 6:
402 goes into 1160 2 times with a remainder of 356.
Use 2 as the next digit of our solution. 
Result so far: 532.0
The remainder is 356 after subtracting 804 from 1160.
Bring next digit (3) of the dividend behind the 356 and repeat the process: 3563 / 402

Advancing to step 7:
If we divide 3563 by 402, we get 8 and a remainder of 347.
The next digit of our result is 8. 
Result so far: 5328.0
Deduct 3216 from 3563 and we're left with 347.
Fetch the next digit (0) from the dividend, attach it to 347 and continue: 3470 / 402

Step 8:
When dividing 3470 by 402, we get 8 with a remainder of 254.
Put 8 as the next digit of the answer. 
Result so far: 53288.0
If we take 3216 away from 3470, we end up with 254.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2540, and continue the process.

On to step 9:
The number 402 fits into 2540 6 times, leaving a remainder of 128.
The next digit of our result is 6. 
Result so far: 53288.6
Subtract 2412 from 2540 to get 128.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1280, and continue the process.

Moving on to step 10:
402 goes into 1280 3 times with a remainder of 74.
The number 3 becomes the next digit in our result. 
Result so far: 53288.63
Subtracting 1206 from 1280 leaves us with 74.
Since there are no more digits in the dividend, we add a zero to the remainder making it 740, and continue the process.

Advancing to step 11:
If we divide 740 by 402, we get 1 and a remainder of 338.
Write down 1 as next digit of the result. 
Result so far: 53288.631
The remainder is 338 after subtracting 402 from 740.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3380, and continue the process.

Let's proceed to step 12:
3380 divided by 402 is 8 with a remainder of 164.
The next digit of our result is 8. 
Result so far: 53288.6318
If we subtract 3216 from 3380, we get 164.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1640, and continue the process.

Going ahead to step 13:
402 can be fit into 1640 4 times, resulting in a remainder of 32.
Put 4 as the next digit of the answer. 
Result so far: 53288.63184
Subtract 1608 from 1640 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.

Step 14:
402 goes into 320 0 times with a remainder of 320.
Record the quotient 0 as the next digit in the result. 
Result so far: 53288.63184
Subtract 0 from 320 to get 320.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3200, and continue the process.

Step 15:
402 can be fit into 3200 7 times, resulting in a remainder of 386.
The next digit of our result is 7. 
Result so far: 53288.6318407
If we take 2814 away from 3200, we end up with 386.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3860, and continue the process.

Let's proceed to step 16:
When dividing 3860 by 402, we get 9 with a remainder of 242.
The next digit of our result is 9. 
Result so far: 53288.63184079
If we take 3618 away from 3860, we end up with 242.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2420, and continue the process.

The final outcome is 53288.63184079, with a leftover of 2.42e-07.