We're dividing 7604324 by 420 
We want to divide 7604324 by 420.

Moving on to step 1:
The number 420 fits into 7 0 times, leaving a remainder of 7.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Subtracting 0 from 7 leaves us with 7.
Take the next digit (6) from the dividend and append it to 7, then repeat: 76 / 420

Let's proceed to step 2:
If we divide 76 by 420, we get 0 and a remainder of 76.
The next digit of our result is 0. 
Result so far: 0.0
Subtracting 0 from 76 leaves us with 76.
Bring next digit (0) of the dividend behind the 76 and repeat the process: 760 / 420

Advancing to step 3:
The number 420 fits into 760 1 times, leaving a remainder of 340.
Record the quotient 1 as the next digit in the result. 
Result so far: 1.0
If we subtract 420 from 760, we get 340.
Grab the next digit (4) from the dividend, add it to 340, then carry on: 3404 / 420

Advancing to step 4:
If we divide 3404 by 420, we get 8 and a remainder of 44.
Use 8 as the next digit of our solution. 
Result so far: 18.0
If we take 3360 away from 3404, we end up with 44.
Grab the next digit (3) from the dividend, add it to 44, then carry on: 443 / 420

Moving on to step 5:
443 divided by 420 is 1 with a remainder of 23.
Put 1 as the next digit of the answer. 
Result so far: 181.0
If we subtract 420 from 443, we get 23.
Bring next digit (2) of the dividend behind the 23 and repeat the process: 232 / 420

Step 6:
420 goes into 232 0 times with a remainder of 232.
Write down 0 as next digit of the result. 
Result so far: 1810.0
The remainder is 232 after subtracting 0 from 232.
Grab the next digit (4) from the dividend, add it to 232, then carry on: 2324 / 420

On to step 7:
420 goes into 2324 5 times with a remainder of 224.
The next digit of our result is 5. 
Result so far: 18105.0
If we take 2100 away from 2324, we end up with 224.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2240, and continue the process.

Going ahead to step 8:
2240 divided by 420 is 5 with a remainder of 140.
Write down 5 as next digit of the result. 
Result so far: 18105.5
Subtract 2100 from 2240 to get 140.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1400, and continue the process.

Going ahead to step 9:
The number 420 fits into 1400 3 times, leaving a remainder of 140.
Write down 3 as next digit of the result. 
Result so far: 18105.53
Deduct 1260 from 1400 and we're left with 140.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1400, and continue the process.

Advancing to step 10:
When dividing 1400 by 420, we get 3 with a remainder of 140.
Record the quotient 3 as the next digit in the result. 
Result so far: 18105.533
Deduct 1260 from 1400 and we're left with 140.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1400, and continue the process.

The final result is 18105.533 with a remainder of 0.014.