421649 ÷ 79 
We're looking to find how many times 79 goes into 421649.

On to step 1:
79 goes into 4 0 times with a remainder of 4.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Subtracting 0 from 4 leaves us with 4.
Take the next digit (2) from the dividend and append it to 4, then repeat: 42 / 79

Step 2:
If we divide 42 by 79, we get 0 and a remainder of 42.
The next digit of our result is 0. 
Result so far: 0.0
If we subtract 0 from 42, we get 42.
Grab the next digit (1) from the dividend, add it to 42, then carry on: 421 / 79

Moving on to step 3:
421 divided by 79 is 5 with a remainder of 26.
Write down 5 as next digit of the result. 
Result so far: 5.0
If we take 395 away from 421, we end up with 26.
Take the next digit (6) from the dividend and append it to 26, then repeat: 266 / 79

Moving on to step 4:
266 divided by 79 is 3 with a remainder of 29.
The number 3 becomes the next digit in our result. 
Result so far: 53.0
Subtract 237 from 266 to get 29.
Grab the next digit (4) from the dividend, add it to 29, then carry on: 294 / 79

Let's proceed to step 5:
79 can be fit into 294 3 times, resulting in a remainder of 57.
Put 3 as the next digit of the answer. 
Result so far: 533.0
Subtract 237 from 294 to get 57.
Append the next digit (9) from the dividend to 57 and continue with: 579 / 79

Let's proceed to step 6:
When dividing 579 by 79, we get 7 with a remainder of 26.
Write down 7 as next digit of the result. 
Result so far: 5337.0
Deduct 553 from 579 and we're left with 26.
Since there are no more digits in the dividend, we add a zero to the remainder making it 260, and continue the process.

On to step 7:
260 divided by 79 is 3 with a remainder of 23.
Put 3 as the next digit of the answer. 
Result so far: 5337.3
Subtracting 237 from 260 leaves us with 23.
Since there are no more digits in the dividend, we add a zero to the remainder making it 230, and continue the process.

Going ahead to step 8:
79 can be fit into 230 2 times, resulting in a remainder of 72.
Use 2 as the next digit of our solution. 
Result so far: 5337.32
If we subtract 158 from 230, we get 72.
Since there are no more digits in the dividend, we add a zero to the remainder making it 720, and continue the process.

Let's proceed to step 9:
720 divided by 79 is 9 with a remainder of 9.
Write down 9 as next digit of the result. 
Result so far: 5337.329
If we take 711 away from 720, we end up with 9.
Since there are no more digits in the dividend, we add a zero to the remainder making it 90, and continue the process.

On to step 10:
90 divided by 79 is 1 with a remainder of 11.
Use 1 as the next digit of our solution. 
Result so far: 5337.3291
Subtract 79 from 90 to get 11.
Since there are no more digits in the dividend, we add a zero to the remainder making it 110, and continue the process.

Going ahead to step 11:
79 goes into 110 1 times with a remainder of 31.
The next digit of our result is 1. 
Result so far: 5337.32911
Subtracting 79 from 110 leaves us with 31.
Since there are no more digits in the dividend, we add a zero to the remainder making it 310, and continue the process.

The quotient of the division is 5337.32911, and the remainder is 3.1e-05.