15429989 ÷ 214 
We want to figure out the number of times 15429989 can be divided by 214.

Step 1:
214 can be fit into 1 0 times, resulting in a remainder of 1.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Subtracting 0 from 1 leaves us with 1.
Grab the next digit (5) from the dividend, add it to 1, then carry on: 15 / 214

Moving on to step 2:
214 can be fit into 15 0 times, resulting in a remainder of 15.
Use 0 as the next digit of our solution. 
Result so far: 0.0
If we subtract 0 from 15, we get 15.
Include the next digit (4) from the dividend after 15, then repeat: 154 / 214

On to step 3:
The number 214 fits into 154 0 times, leaving a remainder of 154.
Write down 0 as next digit of the result. 
Result so far: 0.0
Deduct 0 from 154 and we're left with 154.
Take the next digit (2) from the dividend and append it to 154, then repeat: 1542 / 214

Let's proceed to step 4:
If we divide 1542 by 214, we get 7 and a remainder of 44.
The number 7 becomes the next digit in our result. 
Result so far: 7.0
Deduct 1498 from 1542 and we're left with 44.
Include the next digit (9) from the dividend after 44, then repeat: 449 / 214

On to step 5:
214 goes into 449 2 times with a remainder of 21.
Put 2 as the next digit of the answer. 
Result so far: 72.0
Subtracting 428 from 449 leaves us with 21.
Bring next digit (9) of the dividend behind the 21 and repeat the process: 219 / 214

Step 6:
219 divided by 214 is 1 with a remainder of 5.
Record the quotient 1 as the next digit in the result. 
Result so far: 721.0
Deduct 214 from 219 and we're left with 5.
Fetch the next digit (8) from the dividend, attach it to 5 and continue: 58 / 214

Advancing to step 7:
58 divided by 214 is 0 with a remainder of 58.
Write down 0 as next digit of the result. 
Result so far: 7210.0
Subtract 0 from 58 to get 58.
Fetch the next digit (9) from the dividend, attach it to 58 and continue: 589 / 214

On to step 8:
214 can be fit into 589 2 times, resulting in a remainder of 161.
Record the quotient 2 as the next digit in the result. 
Result so far: 72102.0
If we take 428 away from 589, we end up with 161.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1610, and continue the process.

Going ahead to step 9:
214 goes into 1610 7 times with a remainder of 112.
The number 7 becomes the next digit in our result. 
Result so far: 72102.7
Subtract 1498 from 1610 to get 112.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1120, and continue the process.

Step 10:
The number 214 fits into 1120 5 times, leaving a remainder of 50.
Write down 5 as next digit of the result. 
Result so far: 72102.75
Subtracting 1070 from 1120 leaves us with 50.
Since there are no more digits in the dividend, we add a zero to the remainder making it 500, and continue the process.

Moving on to step 11:
When dividing 500 by 214, we get 2 with a remainder of 72.
The next digit of our result is 2. 
Result so far: 72102.752
Subtracting 428 from 500 leaves us with 72.
Since there are no more digits in the dividend, we add a zero to the remainder making it 720, and continue the process.

Advancing to step 12:
The number 214 fits into 720 3 times, leaving a remainder of 78.
The number 3 becomes the next digit in our result. 
Result so far: 72102.7523
If we take 642 away from 720, we end up with 78.
Since there are no more digits in the dividend, we add a zero to the remainder making it 780, and continue the process.

On to step 13:
If we divide 780 by 214, we get 3 and a remainder of 138.
The number 3 becomes the next digit in our result. 
Result so far: 72102.75233
Subtract 642 from 780 to get 138.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1380, and continue the process.

In conclusion, the division gives 72102.75233 with a balance of 0.000138.