321369 ÷ 74 
Our goal is to divide 321369 by 74.

On to step 1:
When dividing 3 by 74, we get 0 with a remainder of 3.
Write down 0 as next digit of the result. 
Result so far: 0.0
If we subtract 0 from 3, we get 3.
Include the next digit (2) from the dividend after 3, then repeat: 32 / 74

On to step 2:
The number 74 fits into 32 0 times, leaving a remainder of 32.
Use 0 as the next digit of our solution. 
Result so far: 0.0
The remainder is 32 after subtracting 0 from 32.
Fetch the next digit (1) from the dividend, attach it to 32 and continue: 321 / 74

Step 3:
When dividing 321 by 74, we get 4 with a remainder of 25.
Use 4 as the next digit of our solution. 
Result so far: 4.0
The remainder is 25 after subtracting 296 from 321.
Grab the next digit (3) from the dividend, add it to 25, then carry on: 253 / 74

On to step 4:
253 divided by 74 is 3 with a remainder of 31.
The number 3 becomes the next digit in our result. 
Result so far: 43.0
If we subtract 222 from 253, we get 31.
Bring next digit (6) of the dividend behind the 31 and repeat the process: 316 / 74

On to step 5:
316 divided by 74 is 4 with a remainder of 20.
The next digit of our result is 4. 
Result so far: 434.0
If we subtract 296 from 316, we get 20.
Append the next digit (9) from the dividend to 20 and continue with: 209 / 74

On to step 6:
If we divide 209 by 74, we get 2 and a remainder of 61.
Put 2 as the next digit of the answer. 
Result so far: 4342.0
Deduct 148 from 209 and we're left with 61.
Since there are no more digits in the dividend, we add a zero to the remainder making it 610, and continue the process.

On to step 7:
When dividing 610 by 74, we get 8 with a remainder of 18.
The next digit of our result is 8. 
Result so far: 4342.8
If we take 592 away from 610, 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.

Step 8:
180 divided by 74 is 2 with a remainder of 32.
Put 2 as the next digit of the answer. 
Result so far: 4342.82
Subtracting 148 from 180 leaves us 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 9:
320 divided by 74 is 4 with a remainder of 24.
The number 4 becomes the next digit in our result. 
Result so far: 4342.824
Subtracting 296 from 320 leaves us 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 10:
If we divide 240 by 74, we get 3 and a remainder of 18.
The next digit of our result is 3. 
Result so far: 4342.8243
Deduct 222 from 240 and we're left 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.

Advancing to step 11:
74 can be fit into 180 2 times, resulting in a remainder of 32.
The number 2 becomes the next digit in our result. 
Result so far: 4342.82432
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.

Going ahead to step 12:
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: 4342.824324
If we subtract 296 from 320, we 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.

Moving on to step 13:
240 divided by 74 is 3 with a remainder of 18.
The number 3 becomes the next digit in our result. 
Result so far: 4342.8243243
Deduct 222 from 240 and we're left 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.

Advancing to step 14:
180 divided by 74 is 2 with a remainder of 32.
Write down 2 as next digit of the result. 
Result so far: 4342.82432432
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.

The final outcome is 4342.82432432, with a leftover of 3.2e-08.