57628973 divided by 420 
We want to figure out the number of times 57628973 can be divided by 420.

On to step 1:
5 divided by 420 is 0 with a remainder of 5.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Subtracting 0 from 5 leaves us with 5.
Grab the next digit (7) from the dividend, add it to 5, then carry on: 57 / 420

Moving on to step 2:
420 can be fit into 57 0 times, resulting in a remainder of 57.
Put 0 as the next digit of the answer. 
Result so far: 0.0
If we take 0 away from 57, we end up with 57.
Include the next digit (6) from the dividend after 57, then repeat: 576 / 420

Step 3:
420 can be fit into 576 1 times, resulting in a remainder of 156.
Record the quotient 1 as the next digit in the result. 
Result so far: 1.0
Subtracting 420 from 576 leaves us with 156.
Take the next digit (2) from the dividend and append it to 156, then repeat: 1562 / 420

Let's proceed to step 4:
1562 divided by 420 is 3 with a remainder of 302.
Write down 3 as next digit of the result. 
Result so far: 13.0
Subtract 1260 from 1562 to get 302.
Include the next digit (8) from the dividend after 302, then repeat: 3028 / 420

Advancing to step 5:
If we divide 3028 by 420, we get 7 and a remainder of 88.
Write down 7 as next digit of the result. 
Result so far: 137.0
Deduct 2940 from 3028 and we're left with 88.
Bring next digit (9) of the dividend behind the 88 and repeat the process: 889 / 420

Moving on to step 6:
When dividing 889 by 420, we get 2 with a remainder of 49.
Write down 2 as next digit of the result. 
Result so far: 1372.0
If we take 840 away from 889, we end up with 49.
Bring next digit (7) of the dividend behind the 49 and repeat the process: 497 / 420

On to step 7:
If we divide 497 by 420, we get 1 and a remainder of 77.
The number 1 becomes the next digit in our result. 
Result so far: 13721.0
The remainder is 77 after subtracting 420 from 497.
Grab the next digit (3) from the dividend, add it to 77, then carry on: 773 / 420

Moving on to step 8:
420 can be fit into 773 1 times, resulting in a remainder of 353.
Record the quotient 1 as the next digit in the result. 
Result so far: 137211.0
Subtracting 420 from 773 leaves us with 353.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3530, and continue the process.

Moving on to step 9:
3530 divided by 420 is 8 with a remainder of 170.
Write down 8 as next digit of the result. 
Result so far: 137211.8
Subtract 3360 from 3530 to get 170.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1700, and continue the process.

Step 10:
420 goes into 1700 4 times with a remainder of 20.
Record the quotient 4 as the next digit in the result. 
Result so far: 137211.84
Subtract 1680 from 1700 to get 20.
Since there are no more digits in the dividend, we add a zero to the remainder making it 200, and continue the process.

Advancing to step 11:
200 divided by 420 is 0 with a remainder of 200.
Put 0 as the next digit of the answer. 
Result so far: 137211.84
If we take 0 away from 200, we end up with 200.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2000, and continue the process.

Moving on to step 12:
When dividing 2000 by 420, we get 4 with a remainder of 320.
Put 4 as the next digit of the answer. 
Result so far: 137211.8404
The remainder is 320 after subtracting 1680 from 2000.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3200, and continue the process.

Moving on to step 13:
If we divide 3200 by 420, we get 7 and a remainder of 260.
Record the quotient 7 as the next digit in the result. 
Result so far: 137211.84047
Deduct 2940 from 3200 and we're left with 260.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2600, and continue the process.

Moving on to step 14:
If we divide 2600 by 420, we get 6 and a remainder of 80.
Record the quotient 6 as the next digit in the result. 
Result so far: 137211.840476
If we take 2520 away from 2600, we end up with 80.
Since there are no more digits in the dividend, we add a zero to the remainder making it 800, and continue the process.

Going ahead to step 15:
420 can be fit into 800 1 times, resulting in a remainder of 380.
Put 1 as the next digit of the answer. 
Result so far: 137211.8404761
Deduct 420 from 800 and we're left with 380.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3800, and continue the process.

On to step 16:
3800 divided by 420 is 9 with a remainder of 20.
Use 9 as the next digit of our solution. 
Result so far: 137211.84047619
If we take 3780 away from 3800, we end up with 20.
Since there are no more digits in the dividend, we add a zero to the remainder making it 200, and continue the process.

In conclusion, the division gives 137211.84047619 with a balance of 2e-08.