We look at the division of 69577390 by 420 
Our goal is to divide 69577390 by 420.

On to step 1:
6 divided by 420 is 0 with a remainder of 6.
Write down 0 as next digit of the result. 
Result so far: 0.0
Subtracting 0 from 6 leaves us with 6.
Append the next digit (9) from the dividend to 6 and continue with: 69 / 420

Step 2:
420 can be fit into 69 0 times, resulting in a remainder of 69.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Subtract 0 from 69 to get 69.
Grab the next digit (5) from the dividend, add it to 69, then carry on: 695 / 420

On to step 3:
If we divide 695 by 420, we get 1 and a remainder of 275.
Put 1 as the next digit of the answer. 
Result so far: 1.0
Deduct 420 from 695 and we're left with 275.
Grab the next digit (7) from the dividend, add it to 275, then carry on: 2757 / 420

Advancing to step 4:
When dividing 2757 by 420, we get 6 with a remainder of 237.
Put 6 as the next digit of the answer. 
Result so far: 16.0
Subtracting 2520 from 2757 leaves us with 237.
Grab the next digit (7) from the dividend, add it to 237, then carry on: 2377 / 420

Let's proceed to step 5:
When dividing 2377 by 420, we get 5 with a remainder of 277.
The number 5 becomes the next digit in our result. 
Result so far: 165.0
Deduct 2100 from 2377 and we're left with 277.
Append the next digit (3) from the dividend to 277 and continue with: 2773 / 420

Moving on to step 6:
When dividing 2773 by 420, we get 6 with a remainder of 253.
Put 6 as the next digit of the answer. 
Result so far: 1656.0
If we subtract 2520 from 2773, we get 253.
Append the next digit (9) from the dividend to 253 and continue with: 2539 / 420

Moving on to step 7:
The number 420 fits into 2539 6 times, leaving a remainder of 19.
Use 6 as the next digit of our solution. 
Result so far: 16566.0
Deduct 2520 from 2539 and we're left with 19.
Append the next digit (0) from the dividend to 19 and continue with: 190 / 420

Advancing to step 8:
420 goes into 190 0 times with a remainder of 190.
Use 0 as the next digit of our solution. 
Result so far: 165660.0
If we take 0 away from 190, we end up with 190.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1900, and continue the process.

Let's proceed to step 9:
420 goes into 1900 4 times with a remainder of 220.
Record the quotient 4 as the next digit in the result. 
Result so far: 165660.4
If we take 1680 away from 1900, we end up with 220.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2200, and continue the process.

Let's proceed to step 10:
420 goes into 2200 5 times with a remainder of 100.
Use 5 as the next digit of our solution. 
Result so far: 165660.45
Subtract 2100 from 2200 to get 100.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1000, and continue the process.

Going ahead to step 11:
1000 divided by 420 is 2 with a remainder of 160.
Write down 2 as next digit of the result. 
Result so far: 165660.452
Subtracting 840 from 1000 leaves us with 160.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1600, and continue the process.

Going ahead to step 12:
The number 420 fits into 1600 3 times, leaving a remainder of 340.
Write down 3 as next digit of the result. 
Result so far: 165660.4523
The remainder is 340 after subtracting 1260 from 1600.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3400, and continue the process.

Going ahead to step 13:
3400 divided by 420 is 8 with a remainder of 40.
The next digit of our result is 8. 
Result so far: 165660.45238
The remainder is 40 after subtracting 3360 from 3400.
Since there are no more digits in the dividend, we add a zero to the remainder making it 400, and continue the process.

Let's proceed to step 14:
If we divide 400 by 420, we get 0 and a remainder of 400.
Write down 0 as next digit of the result. 
Result so far: 165660.45238
If we subtract 0 from 400, we get 400.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4000, and continue the process.

Step 15:
4000 divided by 420 is 9 with a remainder of 220.
Put 9 as the next digit of the answer. 
Result so far: 165660.4523809
Subtracting 3780 from 4000 leaves us with 220.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2200, and continue the process.

Let's proceed to step 16:
When dividing 2200 by 420, we get 5 with a remainder of 100.
Use 5 as the next digit of our solution. 
Result so far: 165660.45238095
Subtract 2100 from 2200 to get 100.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1000, and continue the process.

The final outcome is 165660.45238095, with a leftover of 1e-07.