309907 divided by 74 
We want to figure out the number of times 309907 can be divided by 74.

Advancing to step 1:
74 can be fit into 3 0 times, resulting in a remainder of 3.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Subtract 0 from 3 to get 3.
Append the next digit (0) from the dividend to 3 and continue with: 30 / 74

Going ahead to step 2:
30 divided by 74 is 0 with a remainder of 30.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
The remainder is 30 after subtracting 0 from 30.
Take the next digit (9) from the dividend and append it to 30, then repeat: 309 / 74

Moving on to step 3:
74 can be fit into 309 4 times, resulting in a remainder of 13.
Put 4 as the next digit of the answer. 
Result so far: 4.0
The remainder is 13 after subtracting 296 from 309.
Fetch the next digit (9) from the dividend, attach it to 13 and continue: 139 / 74

Let's proceed to step 4:
139 divided by 74 is 1 with a remainder of 65.
Put 1 as the next digit of the answer. 
Result so far: 41.0
If we take 74 away from 139, we end up with 65.
Append the next digit (0) from the dividend to 65 and continue with: 650 / 74

Moving on to step 5:
74 goes into 650 8 times with a remainder of 58.
The number 8 becomes the next digit in our result. 
Result so far: 418.0
Deduct 592 from 650 and we're left with 58.
Append the next digit (7) from the dividend to 58 and continue with: 587 / 74

Moving on to step 6:
If we divide 587 by 74, we get 7 and a remainder of 69.
Record the quotient 7 as the next digit in the result. 
Result so far: 4187.0
Deduct 518 from 587 and we're left with 69.
Since there are no more digits in the dividend, we add a zero to the remainder making it 690, and continue the process.

Step 7:
690 divided by 74 is 9 with a remainder of 24.
Use 9 as the next digit of our solution. 
Result so far: 4187.9
If we take 666 away from 690, we end up with 24.
Since there are no more digits in the dividend, we add a zero to the remainder making it 240, and continue the process.

Moving on to step 8:
If we divide 240 by 74, we get 3 and a remainder of 18.
Put 3 as the next digit of the answer. 
Result so far: 4187.93
If we take 222 away from 240, we end up with 18.
Since there are no more digits in the dividend, we add a zero to the remainder making it 180, and continue the process.

Going ahead to step 9:
If we divide 180 by 74, we get 2 and a remainder of 32.
Use 2 as the next digit of our solution. 
Result so far: 4187.932
Deduct 148 from 180 and we're left with 32.
Since there are no more digits in the dividend, we add a zero to the remainder making it 320, and continue the process.

Let's proceed to step 10:
If we divide 320 by 74, we get 4 and a remainder of 24.
The number 4 becomes the next digit in our result. 
Result so far: 4187.9324
Subtract 296 from 320 to get 24.
Since there are no more digits in the dividend, we add a zero to the remainder making it 240, and continue the process.

Let's proceed to step 11:
If we divide 240 by 74, we get 3 and a remainder of 18.
Use 3 as the next digit of our solution. 
Result so far: 4187.93243
If we subtract 222 from 240, we get 18.
Since there are no more digits in the dividend, we add a zero to the remainder making it 180, and continue the process.

Moving on to step 12:
74 goes into 180 2 times with a remainder of 32.
Write down 2 as next digit of the result. 
Result so far: 4187.932432
If we take 148 away from 180, we end up with 32.
Since there are no more digits in the dividend, we add a zero to the remainder making it 320, and continue the process.

On to step 13:
74 goes into 320 4 times with a remainder of 24.
Record the quotient 4 as the next digit in the result. 
Result so far: 4187.9324324
Subtract 296 from 320 to get 24.
Since there are no more digits in the dividend, we add a zero to the remainder making it 240, and continue the process.

Step 14:
240 divided by 74 is 3 with a remainder of 18.
The number 3 becomes the next digit in our result. 
Result so far: 4187.93243243
Subtracting 222 from 240 leaves us with 18.
Since there are no more digits in the dividend, we add a zero to the remainder making it 180, and continue the process.

The final outcome is 4187.93243243, with a leftover of 1.8e-08.