We divide 39524151 by 420
Our goal is to divide 39524151 by 420.

Advancing to step 1:
3 divided by 420 is 0 with a remainder of 3.
Write down 0 as next digit of the result. 
Result so far: 0.0
The remainder is 3 after subtracting 0 from 3.
Fetch the next digit (9) from the dividend, attach it to 3 and continue: 39 / 420

Moving on to step 2:
When dividing 39 by 420, we get 0 with a remainder of 39.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Subtracting 0 from 39 leaves us with 39.
Grab the next digit (5) from the dividend, add it to 39, then carry on: 395 / 420

Let's proceed to step 3:
If we divide 395 by 420, we get 0 and a remainder of 395.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
If we subtract 0 from 395, we get 395.
Take the next digit (2) from the dividend and append it to 395, then repeat: 3952 / 420

Going ahead to step 4:
420 goes into 3952 9 times with a remainder of 172.
The next digit of our result is 9. 
Result so far: 9.0
Deduct 3780 from 3952 and we're left with 172.
Fetch the next digit (4) from the dividend, attach it to 172 and continue: 1724 / 420

Going ahead to step 5:
420 can be fit into 1724 4 times, resulting in a remainder of 44.
The next digit of our result is 4. 
Result so far: 94.0
Subtracting 1680 from 1724 leaves us with 44.
Append the next digit (1) from the dividend to 44 and continue with: 441 / 420

On to step 6:
420 goes into 441 1 times with a remainder of 21.
The next digit of our result is 1. 
Result so far: 941.0
If we take 420 away from 441, we end up with 21.
Fetch the next digit (5) from the dividend, attach it to 21 and continue: 215 / 420

Let's proceed to step 7:
215 divided by 420 is 0 with a remainder of 215.
Use 0 as the next digit of our solution. 
Result so far: 9410.0
If we take 0 away from 215, we end up with 215.
Append the next digit (1) from the dividend to 215 and continue with: 2151 / 420

Moving on to step 8:
The number 420 fits into 2151 5 times, leaving a remainder of 51.
The number 5 becomes the next digit in our result. 
Result so far: 94105.0
If we take 2100 away from 2151, we end up with 51.
Since there are no more digits in the dividend, we add a zero to the remainder making it 510, and continue the process.

Let's proceed to step 9:
The number 420 fits into 510 1 times, leaving a remainder of 90.
Use 1 as the next digit of our solution. 
Result so far: 94105.1
If we take 420 away from 510, we end up with 90.
Since there are no more digits in the dividend, we add a zero to the remainder making it 900, and continue the process.

Going ahead to step 10:
420 can be fit into 900 2 times, resulting in a remainder of 60.
Put 2 as the next digit of the answer. 
Result so far: 94105.12
Subtracting 840 from 900 leaves us with 60.
Since there are no more digits in the dividend, we add a zero to the remainder making it 600, and continue the process.

On to step 11:
600 divided by 420 is 1 with a remainder of 180.
The next digit of our result is 1. 
Result so far: 94105.121
If we subtract 420 from 600, we get 180.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1800, and continue the process.

Step 12:
420 goes into 1800 4 times with a remainder of 120.
Record the quotient 4 as the next digit in the result. 
Result so far: 94105.1214
If we subtract 1680 from 1800, we get 120.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1200, and continue the process.

Let's proceed to step 13:
When dividing 1200 by 420, we get 2 with a remainder of 360.
Write down 2 as next digit of the result. 
Result so far: 94105.12142
Subtract 840 from 1200 to get 360.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3600, and continue the process.

Let's proceed to step 14:
420 can be fit into 3600 8 times, resulting in a remainder of 240.
Use 8 as the next digit of our solution. 
Result so far: 94105.121428
Subtract 3360 from 3600 to get 240.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2400, and continue the process.

Moving on to step 15:
420 goes into 2400 5 times with a remainder of 300.
The next digit of our result is 5. 
Result so far: 94105.1214285
Subtracting 2100 from 2400 leaves us with 300.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3000, and continue the process.

Advancing to step 16:
420 goes into 3000 7 times with a remainder of 60.
Use 7 as the next digit of our solution. 
Result so far: 94105.12142857
Subtract 2940 from 3000 to get 60.
Since there are no more digits in the dividend, we add a zero to the remainder making it 600, and continue the process.

In conclusion, the division gives 94105.12142857 with a balance of 6e-08.