We divide 53367021 by 420
Let's see how many times 420 fits into 53367021.

Step 1:
If we divide 5 by 420, we get 0 and a remainder of 5.
The next digit of our result is 0. 
Result so far: 0.0
Subtract 0 from 5 to get 5.
Fetch the next digit (3) from the dividend, attach it to 5 and continue: 53 / 420

Step 2:
The number 420 fits into 53 0 times, leaving a remainder of 53.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Subtracting 0 from 53 leaves us with 53.
Take the next digit (3) from the dividend and append it to 53, then repeat: 533 / 420

On to step 3:
533 divided by 420 is 1 with a remainder of 113.
Write down 1 as next digit of the result. 
Result so far: 1.0
If we take 420 away from 533, we end up with 113.
Include the next digit (6) from the dividend after 113, then repeat: 1136 / 420

Going ahead to step 4:
When dividing 1136 by 420, we get 2 with a remainder of 296.
The number 2 becomes the next digit in our result. 
Result so far: 12.0
If we take 840 away from 1136, we end up with 296.
Fetch the next digit (7) from the dividend, attach it to 296 and continue: 2967 / 420

Going ahead to step 5:
The number 420 fits into 2967 7 times, leaving a remainder of 27.
Put 7 as the next digit of the answer. 
Result so far: 127.0
If we take 2940 away from 2967, we end up with 27.
Include the next digit (0) from the dividend after 27, then repeat: 270 / 420

Step 6:
If we divide 270 by 420, we get 0 and a remainder of 270.
The next digit of our result is 0. 
Result so far: 1270.0
Subtracting 0 from 270 leaves us with 270.
Bring next digit (2) of the dividend behind the 270 and repeat the process: 2702 / 420

Advancing to step 7:
2702 divided by 420 is 6 with a remainder of 182.
Record the quotient 6 as the next digit in the result. 
Result so far: 12706.0
If we take 2520 away from 2702, we end up with 182.
Take the next digit (1) from the dividend and append it to 182, then repeat: 1821 / 420

On to step 8:
If we divide 1821 by 420, we get 4 and a remainder of 141.
Put 4 as the next digit of the answer. 
Result so far: 127064.0
Deduct 1680 from 1821 and we're left with 141.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1410, and continue the process.

On to step 9:
420 can be fit into 1410 3 times, resulting in a remainder of 150.
Put 3 as the next digit of the answer. 
Result so far: 127064.3
Subtract 1260 from 1410 to 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.

Let's proceed to step 10:
1500 divided by 420 is 3 with a remainder of 240.
Write down 3 as next digit of the result. 
Result so far: 127064.33
If we take 1260 away from 1500, we end up with 240.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2400, and continue the process.

Our division results in 127064.33 with a remaining 0.24.