97429209 ÷ 420 
We want to divide 97429209 by 420.

Let's proceed to step 1:
The number 420 fits into 9 0 times, leaving a remainder of 9.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Subtract 0 from 9 to get 9.
Grab the next digit (7) from the dividend, add it to 9, then carry on: 97 / 420

Moving on to step 2:
97 divided by 420 is 0 with a remainder of 97.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
The remainder is 97 after subtracting 0 from 97.
Bring next digit (4) of the dividend behind the 97 and repeat the process: 974 / 420

Advancing to step 3:
The number 420 fits into 974 2 times, leaving a remainder of 134.
The next digit of our result is 2. 
Result so far: 2.0
Subtracting 840 from 974 leaves us with 134.
Bring next digit (2) of the dividend behind the 134 and repeat the process: 1342 / 420

Step 4:
420 can be fit into 1342 3 times, resulting in a remainder of 82.
Record the quotient 3 as the next digit in the result. 
Result so far: 23.0
Subtract 1260 from 1342 to get 82.
Fetch the next digit (9) from the dividend, attach it to 82 and continue: 829 / 420

On to step 5:
The number 420 fits into 829 1 times, leaving a remainder of 409.
Write down 1 as next digit of the result. 
Result so far: 231.0
Subtract 420 from 829 to get 409.
Take the next digit (2) from the dividend and append it to 409, then repeat: 4092 / 420

Moving on to step 6:
420 can be fit into 4092 9 times, resulting in a remainder of 312.
Write down 9 as next digit of the result. 
Result so far: 2319.0
If we subtract 3780 from 4092, we get 312.
Bring next digit (0) of the dividend behind the 312 and repeat the process: 3120 / 420

Moving on to step 7:
The number 420 fits into 3120 7 times, leaving a remainder of 180.
Record the quotient 7 as the next digit in the result. 
Result so far: 23197.0
If we subtract 2940 from 3120, we get 180.
Append the next digit (9) from the dividend to 180 and continue with: 1809 / 420

Moving on to step 8:
1809 divided by 420 is 4 with a remainder of 129.
Put 4 as the next digit of the answer. 
Result so far: 231974.0
The remainder is 129 after subtracting 1680 from 1809.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1290, and continue the process.

Moving on to step 9:
420 goes into 1290 3 times with a remainder of 30.
Record the quotient 3 as the next digit in the result. 
Result so far: 231974.3
The remainder is 30 after subtracting 1260 from 1290.
Since there are no more digits in the dividend, we add a zero to the remainder making it 300, and continue the process.

Step 10:
420 can be fit into 300 0 times, resulting in a remainder of 300.
The number 0 becomes the next digit in our result. 
Result so far: 231974.3
Subtract 0 from 300 to get 300.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3000, and continue the process.

Step 11:
If we divide 3000 by 420, we get 7 and a remainder of 60.
Write down 7 as next digit of the result. 
Result so far: 231974.307
Subtracting 2940 from 3000 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 12:
420 can be fit into 600 1 times, resulting in a remainder of 180.
Record the quotient 1 as the next digit in the result. 
Result so far: 231974.3071
Deduct 420 from 600 and we're left with 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 13:
The number 420 fits into 1800 4 times, leaving a remainder of 120.
Record the quotient 4 as the next digit in the result. 
Result so far: 231974.30714
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.

Advancing to step 14:
The number 420 fits into 1200 2 times, leaving a remainder of 360.
Record the quotient 2 as the next digit in the result. 
Result so far: 231974.307142
If we take 840 away from 1200, we end up with 360.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3600, and continue the process.

Step 15:
If we divide 3600 by 420, we get 8 and a remainder of 240.
The number 8 becomes the next digit in our result. 
Result so far: 231974.3071428
Deduct 3360 from 3600 and we're left 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.

Let's proceed to step 16:
420 can be fit into 2400 5 times, resulting in a remainder of 300.
The number 5 becomes the next digit in our result. 
Result so far: 231974.30714285
Subtract 2100 from 2400 to get 300.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3000, and continue the process.

Our division results in 231974.30714285 with a remaining 3e-07.