We look at the division of 89974734 by 509 
We want to figure out the number of times 89974734 can be divided by 509.

On to step 1:
509 goes into 8 0 times with a remainder of 8.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Subtracting 0 from 8 leaves us with 8.
Bring next digit (9) of the dividend behind the 8 and repeat the process: 89 / 509

Advancing to step 2:
If we divide 89 by 509, we get 0 and a remainder of 89.
The next digit of our result is 0. 
Result so far: 0.0
Subtract 0 from 89 to get 89.
Include the next digit (9) from the dividend after 89, then repeat: 899 / 509

Going ahead to step 3:
If we divide 899 by 509, we get 1 and a remainder of 390.
Use 1 as the next digit of our solution. 
Result so far: 1.0
If we take 509 away from 899, we end up with 390.
Take the next digit (7) from the dividend and append it to 390, then repeat: 3907 / 509

Advancing to step 4:
When dividing 3907 by 509, we get 7 with a remainder of 344.
Use 7 as the next digit of our solution. 
Result so far: 17.0
Subtracting 3563 from 3907 leaves us with 344.
Include the next digit (4) from the dividend after 344, then repeat: 3444 / 509

Going ahead to step 5:
If we divide 3444 by 509, we get 6 and a remainder of 390.
Put 6 as the next digit of the answer. 
Result so far: 176.0
Deduct 3054 from 3444 and we're left with 390.
Take the next digit (7) from the dividend and append it to 390, then repeat: 3907 / 509

On to step 6:
When dividing 3907 by 509, we get 7 with a remainder of 344.
Write down 7 as next digit of the result. 
Result so far: 1767.0
The remainder is 344 after subtracting 3563 from 3907.
Grab the next digit (3) from the dividend, add it to 344, then carry on: 3443 / 509

On to step 7:
The number 509 fits into 3443 6 times, leaving a remainder of 389.
Put 6 as the next digit of the answer. 
Result so far: 17676.0
Deduct 3054 from 3443 and we're left with 389.
Bring next digit (4) of the dividend behind the 389 and repeat the process: 3894 / 509

Advancing to step 8:
When dividing 3894 by 509, we get 7 with a remainder of 331.
The next digit of our result is 7. 
Result so far: 176767.0
Deduct 3563 from 3894 and we're left with 331.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3310, and continue the process.

Moving on to step 9:
509 goes into 3310 6 times with a remainder of 256.
The next digit of our result is 6. 
Result so far: 176767.6
The remainder is 256 after subtracting 3054 from 3310.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2560, and continue the process.

Advancing to step 10:
When dividing 2560 by 509, we get 5 with a remainder of 15.
The next digit of our result is 5. 
Result so far: 176767.65
If we subtract 2545 from 2560, we get 15.
Since there are no more digits in the dividend, we add a zero to the remainder making it 150, and continue the process.

Step 11:
When dividing 150 by 509, we get 0 with a remainder of 150.
The next digit of our result is 0. 
Result so far: 176767.65
If we subtract 0 from 150, we get 150.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1500, and continue the process.

Step 12:
509 goes into 1500 2 times with a remainder of 482.
The number 2 becomes the next digit in our result. 
Result so far: 176767.6502
Deduct 1018 from 1500 and we're left with 482.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4820, and continue the process.

Let's proceed to step 13:
4820 divided by 509 is 9 with a remainder of 239.
Use 9 as the next digit of our solution. 
Result so far: 176767.65029
If we subtract 4581 from 4820, we get 239.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2390, and continue the process.

Advancing to step 14:
509 goes into 2390 4 times with a remainder of 354.
The next digit of our result is 4. 
Result so far: 176767.650294
If we subtract 2036 from 2390, we get 354.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3540, and continue the process.

Going ahead to step 15:
The number 509 fits into 3540 6 times, leaving a remainder of 486.
The next digit of our result is 6. 
Result so far: 176767.6502946
Deduct 3054 from 3540 and we're left with 486.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4860, and continue the process.

Step 16:
4860 divided by 509 is 9 with a remainder of 279.
The number 9 becomes the next digit in our result. 
Result so far: 176767.65029469
Subtracting 4581 from 4860 leaves us with 279.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2790, and continue the process.

The final outcome is 176767.65029469, with a leftover of 2.79e-07.